Previous Year Questions
22 papers · 1606 questions — organised by subject with solutions and explanations.
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26 Jun 2022 Shift 1
90 Questions · 360 Marks · 180 Min
25 Jun 2022 Shift 2
90 Questions · 360 Marks · 180 Min
25 Jun 2022 Shift 1
90 Questions · 360 Marks · 180 Min
24 Jun 2022 Shift 1
90 Questions · 360 Marks · 180 Min
29 Jun 2022 Shift 2
90 Questions · 360 Marks · 180 Min
28 Jun 2022 Shift 1
90 Questions · 360 Marks · 180 Min
28 Jul 2022 Shift 1
90 Questions · 360 Marks · 180 Min
27 Jun 2022 Shift 2
90 Questions · 360 Marks · 180 Min
28 Jun 2022 Shift 2
90 Questions · 360 Marks · 180 Min
25 Jul 2022 Shift 2
90 Questions · 360 Marks · 180 Min
24 Jun 2022 Shift 2
90 Questions · 360 Marks · 180 Min
26 Jul 2022 Shift 2
90 Questions · 360 Marks · 180 Min
26 Jun 2022 Shift 2
90 Questions · 360 Marks · 180 Min
27 Jul 2022 Shift 1
90 Questions · 360 Marks · 180 Min
25 Jul 2022 Shift 1
90 Questions · 360 Marks · 180 Min
29 Jul 2022 Shift 2
90 Questions · 360 Marks · 180 Min
27 Jun 2022 Shift 1
90 Questions · 360 Marks · 180 Min
26 Jul 2022 Shift 1
90 Questions · 360 Marks · 180 Min
28 Jul 2022 Shift 2
90 Questions · 360 Marks · 180 Min
29 Jun 2022 Shift 1
90 Questions · 360 Marks · 180 Min
27 Jul 2022 Shift 2
90 Questions · 360 Marks · 180 Min
29 Jul 2022 Shift 1
90 Questions · 360 Marks · 180 Min
Arrange the following carbocations in decreasing order of stability. A [24-Jun-2022-Shift-2]
Product 'A' of following sequence of reactions is [27-Jun-2022-Shift-2]
When 5 moles of He gas expand isothermally and reversibly at from 10 litre to 20 litre, the magnitude of the maximum work obtained is____ [nearest integer] (Given : and ) [27-Jun-2022-Shift-2]
Number of electron deficient molecules among the following and is [25-Jun-2022-Shift-1]
The structure of in the given reaction is : [27-Jul-2022-Shift-2]
The products formed in the following reaction, and are [26-Jul-2022-Shift-1]
Which of the following has least tendency to liberate from mineral acids? [28-Jul-2022-Shift-1]
Consider the following metal complexes: The spin-only magnetic moment value of the complexthat absorbes light with shortest wavelength is B. M. (Nearest integer) [25-Jul-2022-Shift-1]
Considering the above reactions, the compound ' and compound ' ' respectively are : [29-Jul-2022-Shift-1]
Consider the species and . Choose the correct option with respect to the these species. [29-Jun-2022-Shift-2]
The neutralization occurs when of acid 'A' is allowed to react with of base . The basicity of the acid ' ' is[ is a metal] [25-Jun-2022-Shift-2]
of is being titrated against . When of has been added, the of the solution will be ____ . (Nearest integer)(Given : [26-Jun-2022-Shift-1]
Among and ions, one if used as a reagent cannot liberate from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is B.M. (Nearest integer) [25-Jul-2022-Shift-1]
The pressure of a moist gas at is . The volume of the container is doubled at the same temperature. The new pressure of the moist gas is (Nearest integer)(Given : The vapour pressure of water at is )
Ionic radii of cation and anion are 102 and respectively. These ions are allowed to crystallize into an ionic solid. This crystal has cubic close packing for is present in all octahedral voids. The ed
The major product of the given reaction is(where, Me is ) [28-Jun-2022-Shift-2]
Sugar moiety in DNA and RNA molecules respectively are [29-Jun-2022-Shift-1]
At and pressure, the enthalpy of combustion of benzene (I) and acetylene ( are and , respectively. The change in enthalpy for the reaction , is [25-Jun-2022-Shift-2]
Which amongst the given plots is the correct plot for pressure (p) vs density (d) for an ideal gas? [27-Jun-2022-Shift-2]
Which one of the following is an example of disproportionation reaction? [26-Jun-2022-Shift-2]
The correct order of electron gain enthalpy ( ve value) is : [30-Jun-2022-Shift-1]
In the given reactionThe number of chiral carbon/s in product is___ [25-Jul-2022-Shift-1]
Most stable product of the following reaction is: [25-Jul-2022-Shift-1]
For a reaction, given below is the graph of vs . The activation energy for the reaction is equal to____ (nearest integer)(Given : ) [28-Jul-2022-Shift-2]
of acetic acid is dissolved in water to make of solution. The depression in freezing point observed for this strength of acid is . The percentage of dissociation of the acid is_____ (Nearest integer)[
The correct decreasing order of energy for the orbitals having, following set of quantum numbers : (A) (B) (C) (D) is : [27-Jul-2022-Shift-2]
A compound ' ' is a weak acid and it exhibits colour change at close to the equivalence point during neutralization of with . Compound ' ' exists in ionized form in basic medium. The compound ' ' is [
When coal of purity is allowed to burn in presence of insufficient oxygen, of carbon is converted into ' ' and the remaining is converted into ' '. The heat generated when of coal is burnt is _______.
The solubility product of a sparingly soluble salt is . If specific conductance of the solution is 1 , the limiting molar conductivity of the solution is . The value of is____ [28-Jun-2022-Shift-1]
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A) : At , the density of a solution of [atomic masses of are respectively], is ' '
What will be the major product of following sequence of reactions? [27-Jun-2022-Shift-2]
A sample containing is treated with liberating The gas is passed into a solution of and of is required to titrate the liberated iodine. The percentage of in the sample is ____ (Nearest integer)[Atomic
L-isomer of a compound 'A' gives a positive test with . Treatment of 'A' with acetic anhydride yields triacetate derivative. Compound ' ' produces an optically active compound and an optically inactiv
The standard free energy change for dissociation of into at and 1 atm pressure is . The value of is_______ (Nearest Integer)[Given : [25-Jun-2022-Shift-1]
The minimum uncertainty in the speed of an electron in an one dimensional region of length (Where Bohr radius ) is ________ (Given : Mass of electron , Planck's constant ) [29-Jul-2022-Shift-1]
Which of the following ketone will NOT give enamine on treatment with secondary amines? [where t-Bu is [25-Jun-2022-Shift-2]
moles of argon and moles of are introduced into an evacuated flask of 100 litre capacity at . The system is allowed to equilibrate. At equilibrium, the total pressure of mixture was found to be . The
The difference between spin only magnetic moment values of and is ________. [26-Jul-2022-Shift-1]
Which of the following pair is not isoelectronic species?(At. no. Sm, 62; Er, 68; Yb, 70; Lu, 71; Eu, 63; Tb, 65; Tm, 69) [28-Jul-2022-Shift-2]
The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is [26-Jun-2022-Shift-2]
When a certain amount of solid is dissolved in of water at to make a dilute solution, the vapour pressure of the solution is reduced to one-half of that of pure water. The vapour pressure of pure wate
The separation of two coloured substances was done by paper chromatography. The distances travelled by solvent front, substance A and substance from the base line are and , respectively. The ratio of
In neutral or faintly alkaline medium, being a powerful oxidant can oxidize, thiosulphate almost quantitatively, to sulphate. In this reaction overall change in oxidation state of manganese will be :
The oxide which contains an odd electron at the nitrogen atom is [26-Jun-2022-Shift-2]
In alanylglycylleucylalanylvaline, the number of peptide linkages is ____ [24-Jun-2022-Shift-2]
For the reaction given below: If two equivalents of precipitate out, then the value of will be_____ [29-Jun-2022-Shift-2]
Manganese (VI) has ability to disproportionate in acidic solution. The difference in oxidation states of two ions it forms in acidic solution is____ [24-Jun-2022-Shift-2]
Given below are two statements:Statement I : The presence of weaker -bonds make alkenes less stable than alkanes.Statement II : The strength of the double bond is greater than that of carbon-carbon si
The above reaction has been studied at . The related data are given in the table below Reaction serial number Initial Pressure of Initial Pressureof Initial rate 1 65.6 40.0 0.135 2 65.6 20.1 0.033 3
The minimum energy that must be possessed by photons in order to produce the photoelectric effect with platinum metal is :[Given: The threshold frequency of platinum is and .] [25-Jun-2022-Shift-2]
Which one of the following is a reducing sugar? [26-Jul-2022-Shift-1]
The first ionization enthalpy of and Si, respectively, are : 496, 737 and . The first ionization enthalpy of is : [29-Jul-2022-Shift-1]
of an ideal gas is allowed to expand isothermally into vacuum until the total volume is . The amount of heat absorbed in this expansion is _____ . [28-Jun-2022-Shift-1]
Transition metal complex with highest value of crystal field splitting will be [24-Jun-2022-Shift-2]
Given below are two statements: One is labelled as Assertion AA and the other is labelled as Reason Assertion A: The reduction of a metal oxide is easier if the metal formed is in liquid state than so
The incorrect statement about the imperfections in solids is : [28-Jun-2022-Shift-1]
In a solid atoms are in ccp arrangement and atoms occupy all the octahedral sites. If two atoms from the opposite faces are removed, then the resultant stoichiometry of the compound is . The value of
A flask is filled with equal moles of and . The half lives of and are 100 s and 50 s respectively and are independent of the initial concentration. The time required for the concentration of A to be f
Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule? [29-Jul-2022-Shift-1]
Metal crystallizes into a fcc lattice with the edge length of . The atomic mass of the metal is mol. (Nearest integer)( Use : , density of metal, ) [28-Jul-2022-Shift-2]
The correct IUPAC name of the following compound is : [28-Jun-2022-Shift-2]
Sum of oxidation state (magnitude) and coordination number of cobalt in is ________. [29-Jul-2022-Shift-2]
Amongst and , the number of molecules with non-zero net dipole moment is____ [25-Jun-2022-Shift-2]
The major product in the reaction [25-Jun-2022-Shift-1]
The number of chiral alcohol(s) with molecular formula is_____ [29-Jun-2022-Shift-2]
At , the equilibrium constant is for the reaction : The equilibrium constant for the reaction is . The value of is ________. (Nearest Integer) [26-Jul-2022-Shift-1]
In the following brown complex, the oxidation state of iron is _____ [30-Jun-2022-Shift-1]
Consider the above reaction, the limiting reagent of the reaction and number of moles of formed respectively are : [29-Jul-2022-Shift-1]
Consider the given chemical reaction Identify the product P. [30-Jun-2022-Shift-1]
Which statement is NOT correct for p-toluenesulphonyl chloride? [26-Jun-2022-Shift-2]
Given below are two statements :Statement I: On heating with , glycerol is dehydrated and acrolein is formed.Statement II : Acrolein has fruity odour and can be used to test glycerol's presence.Choose
Amongst the following, the number of oxide(s) which are paramagnetic in nature is [27-Jul-2022-Shift-1]
The correct order of energy of absorption for the following metal complexes is [25-Jul-2022-Shift-2]
Identify the incorrect statement from the following. [28-Jul-2022-Shift-1]
Optical activity of an enantiomeric mixture is and the specific rotation of isomer is The optical purity is ________ [27-Jul-2022-Shift-1]
Which of the following conditions or reaction sequence will NOT give acetophenone as the major product? [25-Jun-2022-Shift-2]
For combustion of one mole of magnesium in an open container at and 1 bar pressure, mol , the magnitude of change in internal energy for the reaction is _____ kJ. (Nearest integer)(Given : ) [28-Jun-2
Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R :Assertion A : The amphoteric nature of water is explained by using Lewis acid/base concept.Reason R
The osmotic pressure of blood is bar at . To inject glucose to a patient intravenously, it has to be isotonic with blood. The concentration of glucose solution in is(Molar mass of glucose ) _____(Near
Which of the following -metal ion will give the lowest enthalpy of hydration when dissolved in water? [29-Jul-2022-Shift-2]
Given below are two statements. Statement I: Iron (III) catalyst, acidified and neutral have the ability to oxidise to independently. Statement II: Manganate ion is paramagnetic in nature and involves
The correct order of bond orders of and is, respectively [24-Jun-2022-Shift-2]
The molar conductivity of a conductivity cell filled with 10 moles of solution is and that of 20 moles another identical cell heaving solution is . The conductivities exhibited by these two cells are
The structure of protein that is unaffected by heating is [29-Jun-2022-Shift-2]
Which oxoacid of phosphorous has the highest number of oxygen atoms present in its chemical formula? [27-Jul-2022-Shift-1]
The vapour pressures of two volatile liquids and at are 50 Torr and 100 Torr, respectively. If the liquid mixture contains mole fraction of , then the mole fraction of liquid in the vapour phase is .
A hydrocarbon ' ' is found to have molar mass of of compound ' ' on hydrogenation consumed of gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total numbe
Match List I with List II List - I (Complex) List - II (Hybridization) (A) (I) (B) (II) (C) (III) (D) (IV) Choose the correct answer from the options given below: [28-Jul-2022-Shift-2]
The number of radial and angular nodes in orbital are, respectively [26-Jun-2022-Shift-2]
A dilute solution of sulphuric acid is electrolysed using a current of for 2 hours to produce hydrogen and oxygen gas. The total volume of gases produced a STP is_____ . (Nearest integer)[Given : Fara
Given below are two statements.Statement I : Maltose has two -D-glucose units linked at and and is a reducing sugar.Statement II : Maltose has two monosaccharides : -D-glucose and -D-glucose linked at
The number of radial nodes and total number of nodes in orbital respectively are : [30-Jun-2022-Shift-1]
The metal complex that is diamagnetic is (Atomic number: ) [26-Jul-2022-Shift-2]
The reaction of zinc with excess of aqueous alkali, evolves hydrogen gas and gives : [29-Jul-2022-Shift-1]
Which of the following reagents / reactions will convert 'A' to ' ' ? [24-Jun-2022-Shift-2]
Number of grams of bromine that will completely react with of pent-1-ene is (Atomic mass of ) [Nearest Integer] [25-Jun-2022-Shift-1]
Consider, and . Amongst the above molecule(s)/ion(s), the number of molecule(s)/ion(s) having hybridisation is ________. [29-Jul-2022-Shift-2]
The cell potential for is at . The reaction quotient for the above reaction is . The number of electrons involved in the given electrochemical cell reaction is( Given : and ) [25-Jul-2022-Shift-1]
For a first order reaction , the rate constant, . The time required for completion of reaction is times the half life of reaction. The value of is____𝜕 (Nearest integer)(Given : [28-Jun-2022-Shift-1]
Consider an imaginary ion . The nucleus contains ' ' more neutrons than the number of electrons in the ion. The value of ' ' is ________ . [nearest integer] [26-Jul-2022-Shift-2]
A mixture of hydrogen and oxygen contains hydrogen by mass when the pressure is bar. The partial pressure of hydrogen is bar. (Nearest Integer) [26-Jul-2022-Shift-1]
Reaction of with excess ammonia and in the presence of oxygen results into a diamagnetic product. Number of electrons present in -orbitals of the product is__ [26-Jun-2022-Shift-2]
In following pairs, the one in which both transition metal ions are colourless is : [29-Jul-2022-Shift-1]
Consider the following reaction: alkali (Major Product)If is an oxoacid of phosphorus with no bond, then is : [26-Jun-2022-Shift-1]
The conductivity of a solution of complex with formula corresponds to electrolyte, then the primary valency of central metal ion is _______. [27-Jul-2022-Shift-1]
An organic compound 'A' on reaction with followed by heating gives compound . Which on further strong heating gives compound . Compound on sequential reaction withethanolic , alkyl chloride and hydrol
Heating white phosphorus with conc. solution gives mainly: [27-Jun-2022-Shift-1]
The correct structure of [25-Jul-2022-Shift-2]
of solution is used for the titration of of solution in the acidic medium. The molarity of solution is _______ . (Nearest Integer) [27-Jul-2022-Shift-1]
List I List II (A) (I) (B) (II) (C) (III) (D) (IV) Choose the correct answer from the options given below : [25-Jul-2022-Shift-1]
In which of the following pairs, electron gain enthalpies of constituent elements are nearly the same or identical? (A) and (B) Na and K (C) Ar and (D) I and At Choose the correct answer from the opti
Identify the correct statement for from those given below :(A) In , all B-H bonds are equivalent.(B) In , there are four 3-centre-2-electron bonds.(C) is a Lewis acid.(D) can be synthesized from both
Consider the above reaction and identify the intermediate ' ' [26-Jun-2022-Shift-1]
The osmotic pressure exerted by a solution prepared by dissolving of protein of molar mass in of water at is ______ Pa. [integer value] (use ) [26-Jun-2022-Shift-2]
The electronic configuration of (atomic number 78 ) is: [29-Jun-2022-Shift-1]
For a reaction the half lives are and when the concentration of reactant is and respectively. The order of the reaction is _______. (Nearest Integer) [26-Jul-2022-Shift-1]
List I List II (A) Sulphate (I Pesticide (B) Fluoride (II) Bending of bones (C) Nicotine (III) Laxative effect (D) Sodium arsinite (IV) Herbicide Choose the correct answer from the options given below
When of nitric acid is heated in a beaker, its volume is reduced to half and of nitric acid is evaporated. The molarity of the remaining nitric acid solution is . (Nearest integer) (Molar mass of nitr
of hypo solution is used for the titration of of copper sulphate solution, in the presence of excess of using starch as an indicator. The molarity of is found to be _______ [nearest integer] Given [26
An element crystallises in a body centred cubic unit cell with a cell edge of . The density of the element is . The number of atoms present in of the element is _________ (Nearest integer) [28-Jul-202
Given below are two statements. Statement 1: The compound is optically active. Statement II : is mirror image of above compound . In the light of the above statement, choose the most appropriate answe
List-1 List -II (A) I (B) II (C) III (D) IV Choose the most appropriate answer from the options given below : [24-Jun-2022-Shift-1]
When of is mixed with of solution in a flask, the rise in temperature of the flask is _______ (Enthalpy of neutralisation and Specific heat of water ) (Neglect heat capacity of flask) [29-Jul-2022-Shi
Consider the following reaction sequence:The product ' ' is : [29-Jul-2022-Shift-1]
A compound ' ' is acidic and it is soluble in solution, but insoluble in solution. Compound ' ' also gives violet colour with neutral solution. The compound ' ' is : [29-Jul-2022-Shift-1]
For the below given cyclic hemiacetal , the correct pyranose structure is : [28-Jul-2022-Shift-1]
An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is _______B.M. (Nearest integer) [2
and in the above atmospheric reaction step are : [26-Jul-2022-Shift-1]
The major product of the following reaction contains _____bromine atom(s). [28-Jun-2022-Shift-2]
In the given reaction 'A' can be [25-Jun-2022-Shift-2]
Among the following species the number of species showing diamagnesim is [25-Jul-2022-Shift-1]
Hemoglobin contains of iron by mass. The number of Fe atoms in of hemoglobin is (Given: Atomic mass of Fe is .) [26-Jul-2022-Shift-2]
Compound A contains Hydrogen, Carbon and Nitrogen. The molecular formula of the compound is,Given : Atomic masses of and are 12,1 and 14 amu respectively.The molar mass of the compound is . [28-Jun-20
should be an inner orbital complex. Ignoring the pairing energy, the value of crystal field stabilization energy for this complex is _______ . (Nearest integer) [29-Jul-2022-Shift-1]
A sample of polyhydric alcoholic compound 'X' of molar mass gave of gas at STP. The number of alcoholic hydrogens present in compound ' ' is ________. [29-Jul-2022-Shift-2]
Which reactant will give the following alcohol on reaction with one mole of phenyl magnesium bromide followed by acidic hydrolysis? [26-Jul-2022-Shift-1]
Match List - I with List - II, match the gas evolved during each reaction. List - I (A) (B) (C) (D) List - II (I) (II) (III) (IV) Choose the correct answer from the options given below: [28-Jul-2022-S
According to MO theory, number of species/ions from the following having identical bond order is ________. [27-Jul-2022-Shift-1]
A percent solution of potassium chloride was found to freeze at . The percentage dissociation of potassium chloride is____ (Nearest integer)(Molal depression constant for water is and molar mass of )
Which of the following carbocations is most stable? [29-Jun-2022-Shift-2]
The resistance of a conductivity cell containing solution at is . If the conductivity of solution at is , then the cell constant of the conductivity cell is _____ [24-Jun-2022-Shift-2]
Boiling point of a aqueous solution of a non-volatile solute is equal to the boiling point of aqueous solution of a non-volatile solute . The relation between molecular weights of and is [27-Jul-2022-
The metal ion (in gaseous state) with lowest spin-only magnetic moment value is [25-Jun-2022-Shift-2]
of an organic compound was subjected to estimation of nitrogen by Dumas method in which volume of evolved (at STP) was found to be . The percentage of nitrogen in the compound is ______[nearest intege
The cell potential for the following cell is at . The of the solution is _____(Nearest integer)(Given : and ) [24-Jun-2022-Shift-1]
Which will have the highest enol content? [26-Jun-2022-Shift-1]
Hydrolysis of which compound will give carbolic acid? [26-Jul-2022-Shift-2]
of an organic compound that contains only carbon and hydrogen gives of and of water on complete combustion. The percentage of carbon and hydrogen, respectively are [24-Jun-2022-Shift-2]
In the following reaction : The compounds A and B respectively are : [25-Jun-2022-Shift-1]
Which technique among the following, is most appropriate in separation of a mixture of of nitrophenol and picric acid? [26-Jul-2022-Shift-1]
At , ozone is fifty percent dissociated. The standard free energy change at this temperature and 1 atm pressure is . (Nearest integer) [Given : and ] [24-Jun-2022-Shift-1]
Hex-4-ene-2-ol on treatment with PCC gives 'A'. 'A' on reaction with sodium hypoiodite gives ' ', which on further heating with soda lime gives ' '. The compound ' ' is : [24-Jun-2022-Shift-2]
Which of the following is not an example of benzenoid compound? [26-Jul-2022-Shift-2]
Chlorophyll extracted from the crushed green leaves was dissolved in water to make solution of of concentration . The number of atoms of in this solution is atoms. The value of is _________. (Nearest
A sample of of an unknown monohydric alcohol, R-OH was added to methylmagnesium iodide. A gas is evolved and is collected and its volume measured to be . The molecular weight of the unknown alcohol is
For the reaction The enthalpy change for the above reaction is _______ [nearest integer] Given: [26-Jul-2022-Shift-2]
For a cell, the cell potential is found to be at . The magnitude of standard electrode potential for is _______ [Given : and [29-Jul-2022-Shift-2]
For complete combustion of methanol the amount of heat produced as measured by bomb calorimeter is at . The enthalpy of combustion for the reaction is , where is____ (Nearest integer)(Given : ) [26-Ju
The of different types of half cells are as follows: A B C D (Where is the electromotive force)Which of the above half cells would be preferred to be used as reference electrode? [26-Jun-2022-Shift-1]
Glycosidic linkage between C1 of -glucose and C2 of -fructose is found in [25-Jul-2022-Shift-2]
A gas (Molar mass ) was burnt in excess in a constant volume calorimeter and during combustion the temperature of calorimeter increased from to . If the heat capacity of calorimeter is and enthalpy of
Amongst the following, the number of molecule/(s) having net resultant dipole moment is______ [30-Jun-2022-Shift-1]
Given below are two statements: one is labelled as Assertion and the other is labelled as Reason Assertion A: Phenolphthalein is a dependent indicator, remains colourless in acidic solution and gives
When the excited electron of a atom from drops to the ground state, the maximum number of emission lines observed are______ [25-Jul-2022-Shift-2]
The molar heat capacity for an ideal gas at constant pressure is . The change in internal energy is upon heating it from to . The number of moles of the gas at constant volume is _______. [ [Nearest i
With respect to the following reaction, consider the given statements : (A) o-Nitroaniline and p-nitroaniline are the predominant products.(B) p-Nitroaniline and m-nitroaniline are the predominant pro
The most common oxidation state of Lanthanoid elements is . Which of the following is likely to deviate easily from oxidation state? [26-Jun-2022-Shift-2]
In the titration of and oxalic acid in acidic medium, the change in oxidation number of carbon at the end point is ________. [27-Jul-2022-Shift-1]
Which of the following statements are correct?(A) The electronic configuration of is .(B) The magnetic quantum number may have a negative value.(C) In the ground state of an atom, the orbitals are fil
The major product (P) in the reaction [28-Jun-2022-Shift-1]
White precipitate of dissolves in aqueous ammonia solution due to formation of : [25-Jun-2022-Shift-1]
Given below are two statements. Statement I: The chlorides of and have -bridged structure. Both are soluble in organic solvents and act as Lewis bases. Statement II: Hydroxides of Be and dissolve in e
In the above reaction product is: [27-Jul-2022-Shift-1]
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.Assertion A : Fluorine forms one oxoacid.Reason R : Fluorine has smallest size amongst all halogen
The moles of methane required to produce of water after complete combustion is ____ mol. [nearest integer] [26-Jun-2022-Shift-2]
The hybridization of exhibited in is . The value of is____ [28-Jun-2022-Shift-1]
A compound on reaction with and produces the same major product but different by product ' ' and ' '. Oxidation of ' ' gives a substance produced by ants. ' ' and 'Y' respectively are [25-Jul-2022-Shi
The reagent neutral ferric chloride is used to detect the presence of [30-Jun-2022-Shift-1]
The total number of monobromo derivatives formed by he alkanes with molecular formula is (excluding stereo isomers) [25-Jul-2022-Shift-2]
The major product in the given reaction is [28-Jul-2022-Shift-2]
The formula of the purple colour formed in Laissaigne's test for sulphur using sodium nitroprusside is [28-Jun-2022-Shift-1]
value of solution is___ [27-Jun-2022-Shift-2]
The Gibbs free energy change for the above reaction at is . The value of is ______ [nearest integer][Given : ] [26-Jun-2022-Shift-2]
and are the respective ionization constants for the following reactions (a), (b) and (c). (a) (b) (c) The relationship between and is given as [25-Jul-2022-Shift-2]
of an ideal gas is kept in a cylinder of volume at under bar pressure. The molar mass of the gas is _____ . (Nearest integer)(Given : ) [28-Jun-2022-Shift-2]
At , the solubility of in water is . The solubility product of is _______ . (Give molar mass : ) [27-Jul-2022-Shift-1]
The number of hybridised carbons in an acyclic neutral compound with molecular formula is [25-Jul-2022-Shift-1]
For the decomposition of azomethane. , a first order reaction, the variation in partial pressure with time at is given as. The half life of the reaction is_____ . [Nearest integer] [25-Jul-2022-Shift-
Which of the following is an example of conjugated diketone? [24-Jun-2022-Shift-1]
The number of interhalogens from the following having square pyramidal structure is : [28-Jul-2022-Shift-1]
The interhalogen compound formed from the reaction of bromine with excess of fluorine is a: [25-Jul-2022-Shift-1]
Low oxidation state of metals in their complexes are common when ligands: [27-Jul-2022-Shift-2]
A solution of on treatment with methanol produces of a gas at STP. The weight of gas produced is _______ mg. [nearest integer] [26-Jul-2022-Shift-2]
Which of the following will have maximum stabilization due to crystal field? [27-Jun-2022-Shift-1]
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason Assertion A : Permanganate titrations are not performed in presence of hydrochloric acid.Reason R :
For the given first order reaction the half life of the reaction is . The ratio of the initial concentration of reactant to the concentration of reactant at time will be equal to ________. (Nearest in
Consider the above reaction and predict the major product. [26-Jul-2022-Shift-2]
An organic compound ' A ' contains nitrogen and chlorine. It dissolves readily in water to give a solution that turns litmus red. Titration of compound with standard base indicates that the molecular
The most stable trihalide of nitrogen is: [24-Jun-2022-Shift-1]
Given below are two statements :Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.Statement II : Electron withdrawing groups in the carboxylic aci
Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B. [28-Jul-2022-Shift-2]
In Carius method of estimation of halogen, of an organic compound gave of . Find out the percentage of bromine in the compound. (Molar masses : ) [27-Jul-2022-Shift-1]
Total number of possible stereoisomers of dimethyl cyclopentane is____ [27-Jun-2022-Shift-1]
Stability of -Helix structure of proteins depends upon [28-Jun-2022-Shift-1]
Amongst the following, the major product of the given chemical reaction is [25-Jun-2022-Shift-2]
In the given reaction sequence, the major product is : [24-Jun-2022-Shift-1]
In the presence of sunlight, benzene reacts with to give product, . The number of hydrogens in is _________. [26-Jul-2022-Shift-1]
In base vs. acid titration, at the end point methyl orange is present as [25-Jul-2022-Shift-2]
Among the following marked proton of which compound shows lowest value? [28-Jul-2022-Shift-1]
The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is : [29-Jun-2022-Shift-1]
The intermediate X, in the reaction : [25-Jun-2022-Shift-1]
Which of the following oxoacids of sulphur contains "S" in two different oxidation states? [28-Jun-2022-Shift-2]
For a reaction at equilibrium , the relation between dissociation constant (K), degree of dissociation and equilibrium pressure is given by: [24-Jun-2022-Shift-1]
A sample of of an organic compound when analyzed by Duma's method yields of nitrogen gas collected over solution at and . The percentage of nitrogen in the given organic compound is ____(Nearest integ
In the above reaction 'A' is [28-Jun-2022-Shift-2]
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion : Boric acid is a weak acid. Reason : Boric acid is not able to release ion on its own.
Atoms of element form hcp lattice and those of element occupy of its tetrahedral voids. The percentage of element in the lattice is____ (Nearest integer) [24-Jun-2022-Shift-1]
The sugar produced after complete hydrolysis of DNA is [30-Jun-2022-Shift-1]
The correct sequential order of the reagents for the given reaction is [26-Jul-2022-Shift-2]
The rate constants for decomposition of acetaldehyde have been measured over the temperature range . The data has been analysed by plotting graph. The value of activation energy for the reaction is .
An element has a body centred cubic (bcc) structure with a cell edge of . The density of the element is . The number of atoms present in of the element is____Given : Avogadro constant, . [30-Jun-2022-
In the above reaction, of toluene is converted into benzaldehyde with yield. The amount of benzaldehyde produced is ________ . (Nearest integer) [27-Jul-2022-Shift-2]
Amongst and , the spin-only magnetic moment value of the innerorbital complex that absorbs light at shortest wavelength is_____ B.M. [nearest integer] [25-Jun-2022-Shift-2]
The total number of bonds in is ________. [27-Jul-2022-Shift-1]
The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to : [26-Jul-2022-Shift-1]
If the wavelength for an electron emitted from -atom is , then energy absorbed by the electron in its ground state compared to minimum energy required for its escape from the atom, is times. (Nearest
Solute A associates in water. When of solute is dissolved in of water, it depresses the freezing point by . The percentage association of solute A in water, is :[Given : Molar mass of . Molal depressi
In series, the metal having the highest standard electrode potential is [27-Jun-2022-Shift-2]
Among the following, which is the strongest oxidizing agent? [25-Jun-2022-Shift-1]
What is the major product of the following reaction? [25-Jul-2022-Shift-2]
Which statement is not true with respect to nitrate ion test? [26-Jun-2022-Shift-1]
'x' of molecular oxygen is mixed with of neon . The total pressure of the nonreactive mixture of and in the cylinder is 25 bar. The partial pressure of is 20 bar at the same temperature and volume. Th
While performing a thermodynamics experiment, a student made the following observations. The enthalpy of ionization of as calculated by the student is _____ . (nearest integer) [25-Jul-2022-Shift-2]
for butyric acid is . The of solution of butyric acid is _______ . (Nearest integer) [Given [28-Jul-2022-Shift-1]
A sample of an organic compound was digested with conc. and then distilled with . The ammonia gas evolved was passed through of . The used acid required of for complete neutralization. The mass percen
List - I (Si-Compounds) List - II (Si-Polymeric/Other Products (A) (I) Chain Silicone (B) (II) Dimeric Silicone (C) (III) Silane (D) (IV) 2D - Silicone Choose the correct answer from the options given
In the structure of , the lone pair of electrons on is in. [28-Jun-2022-Shift-2]
Correct formula of the compound which gives a white precipitate with solution, but not with solution, is [30-Jun-2022-Shift-1]
How many of the given compounds will give a positive Biuret test ?Glycine, Glycylalanine, Tripeptide, Biuret [25-Jun-2022-Shift-2]
Consider the above reaction. The number of electrons present in the product ' ' is_____ [24-Jun-2022-Shift-2]
The number of stereoisomers formed in a reaction of with is ________. [where is ] [29-Jul-2022-Shift-2]
The pair, in which ions are isoelectronic with is : [25-Jun-2022-Shift-1]
cation gives a prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of : [27-Jul-2022-Shift-2]
A polysaccharide ' ' on boiling with dil at under 2-3 atm pressure yields ' '. ' ' on treatment with bromine water gives gluconic acid. 'X' contains -glycosidic linkages only. Compound ' ' is : [24-Ju
Which one of the following reactions does not represent correct combination of substrate and product under the given conditions? [25-Jul-2022-Shift-1]
mol of monoatomic ideal gas is expanded from state 1 to state 2 as shown in the figure. The magnitude of the work done for the expansion of gas from state 1 to state 2 at is ______J. (Nearest integer)
Given below are two statements :Statement I : The pentavalent oxide of group- 15 element, , is less acidic than trivalent oxide, , of the same element.Statement II : The acidic character of trivalent
The major product of the following reaction is [26-Jul-2022-Shift-1]
Choose the correct option for the following reactions. [28-Jul-2022-Shift-1]
The major product of the following given reaction has_____ hybridized carbon atoms. [24-Jun-2022-Shift-1]
Two isomers and with Molar mass and elemental composition and gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with . Isomer 'A' is optically active and gives a pale yellow precipi
Given below are two statements: one is labelled as Assertion and, the other is labelled as Reason R. Assertion A: [6] Annulene, [8] Annulene and cis-[10] Annulene, are respectively aromatic, not-aroma
Consider the following reactions: The number of ionisable protons present in the product is [25-Jun-2022-Shift-2]
In the cobalt-carbonyl complex : , number of bonds is "X" and terminal ligands is "Y". [24-Jun-2022-Shift-1]
Match List - I with List - II. List - I List - II (A) (l) Primary battery (B) (II) Discharging of secondary battery (C) (III) Fuel cell (D) (IV) Charging of secondary batteryChoose the correct answer
The incorrect statement is [27-Jul-2022-Shift-1]
The stable carbocation formed in the above reaction is [29-Jun-2022-Shift-2]
In the following structures, which on is having staggered conformation with maximum dihedral angle? [25-Jun-2022-Shift-1]
Consider the above reaction, the compound is : [29-Jul-2022-Shift-1]
Dinitrogen is a robust compound, but reacts at high altitudes to form oxides. The oxide of nitrogen that can damage plant leaves and retard photosynthesis is [29-Jul-2022-Shift-2]
At and pressure, the enthalpies of combustion are as given below: Substance C (graphite) -286.0-394.0-1560.0 The enthalpy of formation of ethane is [24-Jun-2022-Shift-2]
A fish swimming in water body when taken out from the water body is covered with a film of water of weight . When it is subjected to cooking at , then the internal energy for vaporization in is _____[
If absorbs a light of wavelength for transition, then the value of octahedral crystal field splitting energy for will be ____ [Nearest Integer](Given : and ) [25-Jun-2022-Shift-1]
Major product of the following reaction is : [25-Jul-2022-Shift-2]
Two elements and which form moles of and type compounds. If both and weigh equally, then the atomic weight of is_____ times of atomic weight of . [27-Jun-2022-Shift-1]
In bromination of Propyne, with Bromine, 1, 1, 2, 2-tetrabromopropane is obtained in 27\% yield. The amount of 1, 1, 2, 2-tetrabromopropane obtained from of Bromine in this reaction is _______ x . (Ne
It has been found that for a chemical reaction with rise in temperature by the rate constant gets doubled. Assuming a reaction to be occurring at , the value of activation energy is found to be _____
Which of the following elements is considered as a metalloid? [26-Jun-2022-Shift-2]
If formation of compound follows the first order of kinetics and after 70 minutes the concentration of was found to be half of its initial concentration. Then the rate constant of the reaction is . Th
Given below are two statements : Statement I : For KI, molar conductivity increases steeply with dilution Statement II : For carbonic acid, molar conductivity increases slowly with dilution In the lig
On complete combustion of an organic compound gave of carbon dioxide and of water. The percentage of carbon in the given organic compound is ____(Nearest integer) [26-Jun-2022-Shift-1]
A rigid nitrogen tank stored inside a laboratory has a pressure of at when the temperature is . At 03:00 pm, when the temperature is , the pressure in the tank will be ____atm. [nearest integer] [25-J
Which of the following structure are aromatic in nature? [28-Jun-2022-Shift-1]
While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from of the compound neutralized of . The percentage of nitrogen present in organic compound is [
Given below are two statements :Statement I : In Hofmann degradation reaction, the migration of only an alkyl group takes place from carbonyl carbon of the amide to the nitrogen atom.Statement II : Th
of undergoes decomposition to and at for this decomposition reaction at one atmosphere pressure is ____ . [nearest integer](Use [26-Jun-2022-Shift-2]
vs plot for the formation of , involving reaction , will look like : [30-Jun-2022-Shift-1]
Which one of the following elemental forms is not present in the enamel of the teeth? [24-Jun-2022-Shift-1]
If gas is bubbled through water at , the number of millimoles of gas that dissolve in 1 litre of water is ________. (Nearest Integer) (Given : Henry's Law constant for at is and partial pressure of )
The ' ' orbitals are half and completely filled, respectively in lanthanide ions[Given : Atomic no. Eu, 63; [27-Jun-2022-Shift-2]
Given below are two statements.- Statement I : In bonds are present.- Statement II : In , ligands coordinating with ion are O-and S-based ligands.In the light of the above statements, choose the corre
The number of terminal oxygen atoms present in the product B obtained from the following reaction is_____ [29-Jun-2022-Shift-1]
A white precipitate was formed when was added to water extract of an inorganic salt. Further, a gas ' ' with characteristic odour was released when the formed white precipitate was dissolved in dilute
The limiting molar conductivities of and are and , respectively (all at ). The limiting molar conductivity of at this temperature is ____ [27-Jun-2022-Shift-1]
The first ionization enthalpies of and follow the order [25-Jul-2022-Shift-2]
Identify the incorrect statement for from the following. [27-Jun-2022-Shift-2]
List - I Enzyne List - IIConversion of A. Invertase I. Starch into maltose B. Zymase II. Maltose into glucose C. Diastase III. Glucose into ethanol D. Maltase IV. Cane sugar into glucose Choose the mo
Consider the above reaction sequence. Identify the component A and component B : [30-Jun-2022-Shift-1]
Halogenation of which one of the following will yield m-substituted product with respect to methyl group as a major product? [26-Jun-2022-Shift-2]
The formulas of and for the following reaction sequence are [28-Jul-2022-Shift-2]
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Experimental reaction of with aniline and anhydrous does not give and methyla
Observe structures of the following compounds The total number of structures/compounds which possess asymmetric carbon atoms is ______________. [29-Jun-2022-Shift-1]
The spin only magnetic moment of the complex present in Fehling's reagent is _________ B.M. (Nearest integer). [27-Jul-2022-Shift-2]
If the uncertainty in velocity and position of a minute particle in space are, and respectively. The mass of the particle in is____ (Nearest integer)(Given : ) [27-Jun-2022-Shift-1]
A solution of is electrolyzed for ' ' min with a current of to deposit of Fe. The value of is [nearest integer]Given : Atomic mass of [25-Jun-2022-Shift-2]
Bonding in which of the following diatomic molecule(s) become(s) stronger, on the basis of MO Theory, by removal of an electron?(A) NO(B) (C) (D) (E) Choose the most appropriate answer from the option
0.01 solution was added to of s salt solution through a burette. The initial reading of burette is zero. The volume of solution left in the burette after the end point is _____ . (nearest integer) [28
Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.) [29-Jul-2022-Shift-1]
Sulphur dioxide is one of the components of polluted air. is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by is [29-Jun-2022-Shift-2]
Consider the following statements :(A) The principal quantum number ' ' is a positive integer with values of ' ' (B) The azimuthal quantum number 'I' for a given 'n' (principal quantum number) can hav
The IUPAC nomenclature of an element with electronic configuration is : [25-Jul-2022-Shift-1]
Consider the ions/molecule For increasing bond order the correct option is : [26-Jun-2022-Shift-1]
For the reaction taking place in the cell : The value of is ____ . (in nearestinteger) [27-Jun-2022-Shift-2]
The plot of -metric titration of weak base vs strong acid looks like : [27-Jul-2022-Shift-2]
The final product ' ' in the following series of reactions [26-Jun-2022-Shift-2]
Choose the correct answer from the options given below: List-1 List-II (A) I. in (B) II. (C) III. (D) IV. [27-Jun-2022-Shift-2]
Among the following, basic oxide is : [28-Jun-2022-Shift-2]
When sugar ' ' is boiled with dilute in alcoholic solution, two isomers ' ' and ' ' are formed. ' ' on oxidation with yields saccharic acid where as ' ' is laevorotatory. The compound ' ' is : [28-Jun
For kinetic study of the reaction of iodide ion with at room temperature : (A) Always use freshly prepared starch solution. (B) Always keep the concentration of sodium thiosulphate solution less than
Consider the following pairs of electrons(A) (b) (B) (a) (b) (C) (b) The pairs of electrons present in degenerate orbitals is/are : [24-Jun-2022-Shift-1]
Consider the reaction The amount of required to produce of is (Given: Atomic masses of and are and 39 , respectively.) [29-Jul-2022-Shift-2]
Given below are two statements:Statement I : Phenols are weakly acidic.Statement II : Therefore they are freely soluble in solution and are weaker acids than alcohols and water.Choose the most appropr
Animal starch is the other name of [26-Jul-2022-Shift-2]
The IUPAC name of ethylidene chloride is : [25-Jun-2022-Shift-1]
Dinitrogen and dioxygen, the main constituents of air do not react with each other in atmosphere to form oxides of nitrogen because [28-Jul-2022-Shift-2]
[24-Jun-2022-Shift-1]
Choose the reaction which is not possible: [30-Jun-2022-Shift-1]
Consider the above reaction sequence and identify the product B. [26-Jun-2022-Shift-1]
Which among the following will be the major product of the given reaction? [30-Jun-2022-Shift-1]
The correct decreasing order of priority of functional groups in naming an organic Question: compound as per IUFAC system of nomenclature is [26-Jul-2022-Shift-2]
When borax is heated with on a platinum loop, blue coloured bead formed is largely due to [29-Jul-2022-Shift-2]
Number of lone pair(s) of electrons on central atom and the shape molecule respectively, are [29-Jun-2022-Shift-2]
Metal deficiency defect is shown by . In the crystal, some cations are missing and loss of positive charge is compensated by the presence of ions. The percentage of ions in the crystals is ___(Nearest
Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is at and 100 . The molar mass of geraniol is ______ . (Nearest Integer) Given : ] [29-Jun-2022-Shift-1]
In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present? [24-Jun-2022-Shift-2]
of an organic compound containing chlorine gave of silver chloride in Carius estimation. The percentage of chlorine present in the compound is_____ [in nearest integer](Given : Molar mass of is and th
The reaction of with bromine and gives as the end product. Which one of the following is the intermediate product formed in this reation? [25-Jun-2022-Shift-1]
The wavelength of an electron and a neutron will become equal when the velocity of the electron is times the velocity of neutron. The value of is ________.(Nearest Integer) (Mass of electron is and ma
For a real gas at temperature and high pressure ( ) the value of compressibility factor is 2 , so the value of Vander Waal's constant 'b' should be ________ (Nearest integer) (Given bar ) [27-Jul-2022
The geometry around boron in the product ' ' formed from the following reaction is [25-Jul-2022-Shift-1]
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A) : Boron is unable to form . Reason : Size of is very small. In the light of the
of a non-volatile non-electrolyte solute is dissolved in of two different solvents and whose ebullioscopic constants are in the ratio of . The elevation in boiling points of and are in the ratio . The
The activation energy of one of the reactions in a biochemical process is . When the temperature falls from 310 to , the change in rate constant observed is . The value of is______[Given [29-Jun-2022-
Given below are two statements. Statement I: Stannane is an example of a molecular hydride. Statement II : Stannane is a planar molecule. In the light of the above statement, choose the most appropria
The half life for the decomposition of gaseous compound is when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half life was found to be . The order ofthe reaction is
A protein ' ' contains of glycine (molecular weight 75 ). The minimum molar mass of the protein ' ' is ____ [nearest integer] [25-Jun-2022-Shift-2]
Which of the following sets of quantum numbers is not allowed? [25-Jul-2022-Shift-1]
A commercially sold conc. is by mass. If the density of this commercial acid is , the molarity of this solution is:(Atomic mass : ) [26-Jun-2022-Shift-1]
The distance between and ions in solid of density is ____ . (Nearest Integer)(Given : ) [25-Jun-2022-Shift-1]
Which of the following relation is not correct? [28-Jul-2022-Shift-1]
In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids) - (number of peptide bonds) is ______. [29-Jul-2022-Shift-1]
For the given reactions the electrode potentials are and . The magnitude of standard electrode potential for i.e. is _____ . (Nearest integer) [28-Jun-2022-Shift-2]
[25-Jun-2022-Shift-1]
Choose the most appropriate answer from the options given below : List-I(Metal) List-II(Application) (A) Cs (I) High temperature thermometer (B) Ga (II) Water repellent sprays (C) B (III) Photoelectri
Which one of the following compounds is inactive towards reaction? [28-Jun-2022-Shift-1]
In the given conversion the compound A is : [29-Jun-2022-Shift-1]
The major product of the following reaction is : [27-Jun-2022-Shift-1]
Match List I with List II. List I List II (A) Benzenesulphonyl chloride (I)Test for primary amines (B) Hoffmann bromamide reaction (II) Anti Saytzeff (C) Carbylamine reaction (III) Hinsberg reagent (D
The correct order of increasing ionic radii is [27-Jun-2022-Shift-2]
Which of the following reactions will yield benzaldehyde as a product? (A)(B)(C)(D) [27-Jun-2022-Shift-1]
If a rocket runs on a fuel and liquid oxygen, the weight of oxygen required and released for every litre of fuel respectively are :(Given : density of the fuel is ) [24-Jun-2022-Shift-1]
Identify the correct statement for the below given transformation. [28-Jul-2022-Shift-1]
The disproportionation of in acidic medium resulted in the formation of two manganese compounds and . If the oxidation state of in is smaller than that of , then the spin-only magnetic moment value of
In a cell, the following reactions take place The standard electrode potential for the spontaneous reaction in the cell is . The value of is ___(Nearest Integer) [25-Jun-2022-Shift-1]
Match List - I with List - II. List I List II (A) (I)Dipole moment (B) (II)Bonding molecular orbital (C) (III)Anti-bonding molecular orbital (D) (IV)Bond orderChoose the correct answer from the option
If the radius of the Bohr's orbit of hydrogen atom is and the radius of Bohr's orbit is . Then : [26-Jun-2022-Shift-1]
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Activated charcoal adsorbs more efficiently than . Reason R: Gases with lower critic
Given below are two statements: One is labelled as Assertion and the other is labelled as Reason Assertion A : Zero orbital overlap is an out of phase overlap. Reason R: It results due to different or
At of are mixed with of . The reaction occurring as above comes to equilibrium under a total pressure of . Analysis of the system shows that of oxygen are present at equilibrium. The equilibrium const
In which of the following half cells, electrochemical reaction is dependent? [30-Jun-2022-Shift-1]
List I (molecule) List II (hybridization ; shape) (A) (I) ; linear (B) (II) ; pyramidal (C) (III) ; distorted octahedral (D) (IV) ; square pyramidal Choose the correct answer from the options given be
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason Assertion A : Thin layer chromatography is an adsorption chromatography.Reason R: A thin layer of sil
dissociates as . 5 moles of are placed in a 200 litre vessel which contains 2 moles of and is maintained at 600 . The equilibrium prẽššưre is . The equilibrium constant for the dissociation of is ____
Given below are two statements. Statement , and are weakly attracted by magnetic field and are magnetized in the same direction as magnetic field. Statement II: and are weakly magnetized in opposite d
Concentrated reacts with lodine to give [28-Jul-2022-Shift-2]
Using the rules for significant figures, the correct answer for the expression will be [29-Jun-2022-Shift-2]
The correct order of melting points of hydrides of group 16 elements is : [26-Jun-2022-Shift-1]
of is mixed with of . The of the mixture is nearest to:(Given: ) [25-Jul-2022-Shift-1]
For a solution of the gases and in water at , the values of Henry's law constant are and bar respectively. In the given graph, the lines marked as ' ' and 's' correspond respectively to : [30-Jun-2022
The equilibrium constant for the reversible reaction is . For , the constant is . and are related as : [30-Jun-2022-Shift-1]
of is mixed with of . The of the mixture is _______. Given: [29-Jul-2022-Shift-2]
The number of atoms in of is . The value of is (Nearest Integer) [25-Jun-2022-Shift-1]
Given below are the oxides: and Number of amphoteric oxides is : [24-Jun-2022-Shift-1]
The number of carbon atoms present in the product is_____ [29-Jun-2022-Shift-1]
The total number of acidic oxides from the following list is [25-Jul-2022-Shift-2]
Among the following structures, which will show the most stable enamine formation? [26-Jun-2022-Shift-1]
The spin-only magnetic moment value of the most basic oxide of vanadium among and is_____ B.M. (Nearest integer) [26-Jun-2022-Shift-1]
A radioactive element has a half life of 200 days. The percentage of original activity remaining after 83 days is_______ (Nearest integer)(Given : antilog , antilog ) [28-Jun-2022-Shift-2]
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Energy of orbital of hydrogen atom is greater than that of orbital of lithium. Reason
Number of electrophilic centres in the given compound is [24-Jun-2022-Shift-1]
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Amylose is insoluble in water. Reason R: Amylose is a long linear molecule with more
A mixture of hydrogen and helium is contained in a vessel of capacity at 6 bar and . The mass of helium in the mixture is _______ g. (nearest integer) Given: (Atomic masses of and are and , respective
Total number of relatively more stable isomer(s) possible for octahedral complex will be _______. [28-Jul-2022-Shift-1]
Identify the major product formed in the following sequence of reactions: [28-Jun-2022-Shift-1]
Outermost electronic configurations of four elements are given below : (A) (B) (C) (D) The correct order of first ionization enthalpy for them is : [27-Jul-2022-Shift-2]
Two isomers ' ' and ' ' with molecular formula give different products on oxidation with in acidic medium. Isomer ' on reaction with results in effervescence of a gas and gives ketone. The compound '
Major product B' of the following reaction sequence is : [27-Jul-2022-Shift-2]
The elevation in boiling point for 1 molal solution of non-volatile solute is . The depression in freezing point for 2 molal solution of in the same solvent is . The ratio of and i.e., is . The value
Arrange the following coordination compounds in the increasing order of magnetic moments. (Atomic numbers : )A. B. C. (high spin)D. Choose the correct answer from the options given below : [27-Jun-202
Given below are the quantum numbers for 4 electrons. A. B. C. D. The correct order of increasing energy is [29-Jul-2022-Shift-2]
Number of lone pairs of electrons in the central atom of and , respectively, are : [29-Jul-2022-Shift-1]
of nitrous oxide gas is cooled at a constant pressure of from to causing the compression of the gas from to . The change in internal energy of the process, is ' . The value of ' ' is ______[nearest in
A primary aliphatic amine on reaction with nitrous acid in cold and there after raising temperature of reaction mixture to room temperature , gives a/an [28-Jun-2022-Shift-1]
In the estimation of bromine, of an organic compound gave of silver bromide. The percentage of bromine in the given compound is ____ (nearest integer)(Relative atomic masses of and are and , respectiv
A sugar ' ' dehydrates very slowly under acidic condition to give furfural which on further reaction with resorcinol gives the coloured product after sometime. Sugar ' ' is [27-Jul-2022-Shift-1]
Catalyst A reduces the activation energy for a reaction by at . The ratio of rate constants, is . The value of is_____ [nearest integer][Assume that the pre-exponential factor is same in both the case
Arrange the following in increasing order of reactivity towards nitration A. p-xylene B. bromobenzene C. mesitylene D. nitrobenzene E. benzene Choose the correct answer from the options given below [2
During halogen test, sodium fusion extract is boiled with concentrated to [25-Jun-2022-Shift-2]
Find out the major product for the above reaction. [28-Jul-2022-Shift-2]
Octahedral complexes of copper(II) undergo structural distortion (Jahn-Teller). Which one of the given copper (II) complexes will show the maximum structural distortion? (en - ethylenediamine; [29-Jul
Amongst and , the number of species with two lone pairs of electrons is_____ [26-Jun-2022-Shift-2]
Given below are two statements :Statement I : In 'Lassaigne's Test', when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.Statement II : If both nitrogen and
Two statements are given below:Statement I : The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with odd number of carbon atoms acid immediately below and
Metals generally melt at very high temperature. Amongst the following, the metal with the highest melting point will be [24-Jun-2022-Shift-2]
In neutral or alkaline solution, oxidises thiosulphate to : [27-Jul-2022-Shift-2]
Consider the above reaction sequence, the Product ' ' is : [29-Jul-2022-Shift-1]
The complete combustion of of an organic compound containing ' ', ' ' and ' ' gives of and of . The percentage of oxygen composition in the organic compound is_______ (nearest integer) [28-Jun-2022-Sh
Nitrogen gas is obtained by thermal decomposition of [28-Jun-2022-Shift-1]
If the work function of a metal is , the maximum wavelength of the photon required to remove a photoelectron from the metal is___ nm. (Nearest integer)[Given : , and ] [28-Jun-2022-Shift-1]
Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate? [28-Jun-2022-Shift-1]
Isobutyraldehyde on reaction with formaldehyde and gives compound ' '. Compound ' ' reacts with and yields compound ' ', which on hydrolysis gives a stable compound ' '. The compound ' ' is [28-Jun-20
The conversion of propan-1-ol to -butylamine involves the sequential addition of reagents. The correct sequential order of reagents is [24-Jun-2022-Shift-2]
A sealed flask with a capacity of contains of propane gas. The flask is so weak that it will burst if the pressure becomes . The minimum temperature at which the flask will burst is__________ . [Neare
Which of the following is the correct plot for the probability density ( ) as a function of distance ' ' of the electron from the nucleus for orbital? [29-Jun-2022-Shift-2]
Acidified potassium permanganate solution oxidises oxalic acid. The spin-only magnetic moment of the manganese product formed from the above reaction is ______B.M. (Nearest integer) [27-Jun-2022-Shift
In the following reactionThe yield for reaction I is and that of reaction II is . The overall yield of the complete reaction is _______%. [nearest integer] [27-Jul-2022-Shift-1]
Borazine, also known as inorganic benzene, can be prepared by the reaction of 3-equivalents of "X" with 6-equivalents of "Y". "X" and "Y", respectively are : [26-Jul-2022-Shift-1]
An evacuated glass vessel weighs when empty, when filled with a liquid of density and when filled with an ideal gas at atm at . The molar mass of the gas in is :(Given : ) [26-Jun-2022-Shift-1]
56.0 of nitrogen gas is mixed with excess hydrogen gas and it is found that of ammonia gas is produced. The volume of unused nitrogen gas is found to be______ L. [25-Jul-2022-Shift-2]
In liquation process used for tin , the metal [29-Jul-2022-Shift-2]
(a) ,(b) ,(c) and(d) .Number of complex(es) which will exist in cis-trans form is/are_______ [28-Jun-2022-Shift-2]
Which among the following is the strongest Bronsted base? [29-Jul-2022-Shift-1]
The cell potential for the given cell at is . The of the acidic solution is found to be 3 , whereas the concentration of is . The value of is_____(Given : and ) [29-Jun-2022-Shift-2]
Given below are two statements :Statement I : is square planar and diamagnetic complex, with dsp hybridization for but is tetrahedral, paramagnetic and with -hybridication for .Statement II : and both
The major product in the following reaction [26-Jun-2022-Shift-2]
In Friedel-Crafts alkylation of aniline, one gets [29-Jun-2022-Shift-2]
White phosphorus reacts with thionyl chloride to give [28-Jul-2022-Shift-2]
For a given chemical reaction Concentration of changes from to in 10 seconds. Rate of appearance of is times the rate of disappearance of which is twice the rate of disappearance . The rate of appeara
on reaction with excess of water results into acidic mixture 16 moles of is required for the complete neutralisation of the resultant acidic mixture. The number of moles of used is: [25-Jul-2022-Shift
The gas produced by treating an aqueous solution of ammonium chloride with sodium nitrite is [27-Jun-2022-Shift-2]
The quantity of electricity in Faraday needed to reduce of to is ______ [28-Jun-2022-Shift-1]
Elevation in boiling point for molal solution of glucose in water is . The depression in freezing point for molal solution of glucose in water is . The ratio of molal elevation constant to molal depre
[29-Jun-2022-Shift-1] Consider the above reactions, the product A and product B respectively are
For the reaction , the values of frequency factor and activation energy are and respectively. If the reaction is of first order, the temperature at which the rate constant is is ____ (Given : In ) [30
During the qualitative analysis of salt with cation , addition of a reagent to alkaline solution of the salt gives a bright red precipitate. The reagent and the cation present respectively are : [24-J
The spin-only magnetic moment value of the compound with strongest oxidizing ability among and is _______ B.M. [nearest integer] [26-Jul-2022-Shift-2]
solution of -glucose in water contains of carbon by weight. The molality of the solution is nearest to (Given: Atomic Weights are, ) [27-Jul-2022-Shift-1]
The longest wavelength of light that can be used for the ionisation of lithium atom (Li) in its ground state is . The value of is___ (Nearest Integer).(Given : Energy of the electron in the first shel
Consider the following set of quantum numbers. n 1 A. 3 3 3 B. 3 2 2 C. 2 1 +1 D. 2 2 +2 The number of correct sets of quantum numbers is __________. [27-Jun-2022-Shift-2]
The energy of one mole of photons of radiation of wavelength is(Given : h ) [24-Jun-2022-Shift-2]
Blister copper is produced by reaction of copper oxide with copper sulphide. When of and of are used for reaction, the massof copper produced is _____g .(nearest integer)(Atomic mass of ) [30-Jun-2022
The solubility of will be maximum in which of the following? [29-Jun-2022-Shift-1]
In the given reaction, the number of hybridised carbon(s) in compound ' ' is __ [29-Jun-2022-Shift-2]
Which of the following is most stable? [27-Jun-2022-Shift-2]
coal is burnt in a bomb calorimeter in excess of oxygen at and pressure. The temperature of the calorimeter rises from to . The enthalpy change during the combustion of coal is . The value of is _____
Cerium (IV) has a noble gas configuration. Which of the following is correct statement about it? [25-Jun-2022-Shift-1]
Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents? [26-Jun-2022-Shift-2]
of solute A was dissolved in of ethanol and freezing point of the solution was found to be . The molar mass of solute is ______. [Given : Freezing point of ethanol is . Density of ethanol is . Freezin
of is reacted with of solution, the molarity of the resulting product in the solution is _______ millimolar. (Nearest integer) [28-Jul-2022-Shift-2]
The difference in oxidation state of chromium in chromate and dichromate salts is ____ [24-Jun-2022-Shift-1]
The number of paramagnetic species among the following is _______. [28-Jul-2022-Shift-1]
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A) : The ionic radii of and are same.Reason (R): Both and are isoelectronic species
A solution containing of a solute dissolved in of water boils at . The molar mass of the solute is _____ . [nearest integer] (Given : and boiling point of water ) [27-Jun-2022-Shift-2]
Compound 'A' undergoes following sequence of reactions to give compound ' '. The correct structure and chirality of compound ' ' is [where Et is ] [29-Jul-2022-Shift-2]
The number of molecule(s) or ion(s) from the following having non-planar structure is _________. [27-Jul-2022-Shift-2]
Aqueous solution of which of the following boron compounds will be strongly basic in nature? [29-Jun-2022-Shift-2]
Resistance of a conductivity cell (cell constant ) filled with solution of is (labelled as solution 1). When the same cell is filled with solution of , the resistance is (labelled as solution 2). The
of a substance upon dissociation reaction, yields of hydrogen, of oxygen and of carbon. Given that the atomic masses of and are 1, 16 and 12, respectively. The data agrees with how many formulae of th
Kjeldahl's method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from of the compound neutralised of solution. The percentage of nitrogen in the compound is______
Spin only magnetic moment of is _______B.M.(Nearest integer) [30-Jun-2022-Shift-1]
A box contains of liquid water in equilibrium with water vapour at . The equilibrium vapour pressure of water at 27 is Torr. When the volume of the box is increased, some of the liquid water evaporate
In an experiment, moles of was placed in a one-litre flask and the concentration of after equilibrium established, was found to be . The equilibrium constant at is______ [27-Jun-2022-Shift-1]
Match List - I with List - II. List I (Processes / Reactions) List II (Catalyst) (A) (I) (B) (II) (C) (III) (D) Vegetable oil(I) Vegetable ghee(s) (IV) Choose the correct answer from the options given
In the given reaction, The number of electrons present in the product ' ' is [29-Jun-2022-Shift-2]
The Hinsberg reagent is [29-Jul-2022-Shift-2]
The number of oxygens present in a nucleotide formed from a base, that is present only in RNA is___ [26-Jun-2022-Shift-1]
Consider the following sulphur based oxoacids. and . Amongst these oxoacids, the number of those with peroxo bond is _______. [29-Jul-2022-Shift-2]
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.Assertion A : A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separat
The standard entropy change for the reaction is at .[Given : The standard enthalpy change for the reaction is ].The temperature in at which the reaction attains equilibrium is____(Nearest Integer) [25
Arrange the following in increasing order of their covalent character. A. B. C. D. Choose the correct answer from the options given below. [26-Jul-2022-Shift-2]
Arrange the following in decreasing acidic strength: [25-Jul-2022-Shift-2]
The correct stability order of the following diazonium salt is [26-Jul-2022-Shift-1]
The spin-only magnetic moment value of ion (in gaseous state) from the pairs and that has negative standard electrode potential, is _____ B.M. [Nearest integer] [25-Jul-2022-Shift-2]
Compound 'P' on nitration with dil. yields two isomers and . These isomers can be separated by steam distillation. Isomers (A) and (B) show the intramolecular and intermolecular hydrogen bonding respe
At , the half life for the decomposition of a sample of a gaseous compound initially at was 340 s. When the pressure was , the half life was found to be . The order of the reaction is _____. [integer
Match List - I with List - II. List - I List - II (l)Spiro compound (II)Aromatic compound (III)Non-planar Heterocyclic compound (IV)Bicyclo compoundChoose the correct answer from the options given bel
Phenol on reaction with dilute nitric acid, gives two products. Which method will be most efficient for large scale separation? [25-Jun-2022-Shift-1]
Match List-I with List-II : List I (Compound) List II (Shape) (A) (I)bent (B) (II) square pyramidal (C) (III) trigonal bipyramidal (D) (IV) octahedral Choose the correct answer from the options given
Which one of the following is a water soluble vitamin, that is not excreted easily? [26-Jun-2022-Shift-2]
During the denaturation of proteins, which of these structures will remain intact? [25-Jul-2022-Shift-1]
Choose the correct answer from the options given below: List - I List - II (A) Spontaneous process (I) (B) Process with (II) (C) (III) Isothermal and isobaric process (D) Exothermic Process (IV) [Bond
The depression in freezing point observed for a formic acid solution of concentration is . Density of formic acid is . The Van't Hoff factor of the formic acid solution is nearly : (Given for water )
Assuming of trace radioactive element with a half life of 30 years is absorbed by a growing tree. The amount of remaining in the tree after 100 years is _______ . [Given : [29-Jul-2022-Shift-2]
The number of non-ionisable protons present in the product B obtained from the following reactions is ________. [26-Jul-2022-Shift-2]
Match List - I with List - II. List I List II (A) (I)Gatterman Koch reaction (B) (II)Etard reaction (C) (III)Stephen reaction (D) (IV)Rosenmund reactionChoose the correct answer from the options given
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.Assertion A : The first ionization enthalpy for oxygen is lower than that of nitrogen.Reason : The
The equation is followed for the decomposition of compound . The activation energy for the reaction is . [nearest integer](Given : ) [29-Jun-2022-Shift-2]
Decarboxylation of all six possible forms of diaminobenzoic acids yields three products and . Three acids give a product ' ', two acids gives a product ' ' and one acid give a product ' '. The melting
CNG is an important transportation fuel. When is mixed with oxygen in vehicles, it leads to the formation of and and produces large quantity of heat during this combustion, then the amount of carbon d
Correct structure of -methylcyclohexane carbaldehyde is [29-Jul-2022-Shift-2]
Among the given complexes, number of paramagnetic complexes is____ [28-Jun-2022-Shift-2]
of completely vapourises at and pressure and the enthalpy change in the process is mol . The enthalpy change for the vapourisation of of under the same conditions is ____ [29-Jun-2022-Shift-1]
A gaseous mixture of two substances and , under a total pressure of is in equilibrium with an ideal liquid solution. The mole fraction of substance is in the vapour phase and in the liquid phase. The
The reaction between and is first order with respect to and zero order with respect to . Experiment I । III IV Examine the data of table and calculate ratio of numerical values of and (Nearest Integer
is well known, but is not. because, [24-Jun-2022-Shift-2]
Which of the given reactions is not an example of disproportionation reaction? [26-Jul-2022-Shift-1]
Which one of the lanthanoids given below is the most stable in divalent form? [28-Jun-2022-Shift-1]
When enthanol is heated with conc. , a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is [29-Jul-2022-Shift-2]
The correct order of reduction potentials of the following pairs isA. B. C. D. E. Choose the correct answer from the options given below. [25-Jun-2022-Shift-2]
of protein containing only glycine is dissolved in water to make of solution. The osmotic pressure of this solution at is found to be bar. The total number of glycine units present in the protein is__
Identify the major products and for the below given reaction sequence. [28-Jul-2022-Shift-1]
At , the half life for the decomposition of is and is independent of the initial concentration of . The time required for of the to decompose is Given: [26-Jul-2022-Shift-2]
The correct order of electron gain enthalpies of , Te and is [25-Jun-2022-Shift-2]
Choose the correct stability order of group 13 elements in their oxidation state. [26-Jun-2022-Shift-1]
The rate constant for a first order reaction is given by the following equation: The activation energy for the reaction is given by ____ . (In nearest integer) (Given : ) [27-Jun-2022-Shift-1]
The sum of number of lone pairs of electrons present on the central atoms of and , is [25-Jul-2022-Shift-2]
Match List - I with Match List - II. List I List II (A)Glucose + HI (I)Gluconic acid (B)Glucose + water (II)Glucose pentacetate (C)Glucose + acetic anhydride (III)Saccharic acid (D)Glucose (IV)HexaneC
The final product ' ' in the following reaction sequence [26-Jun-2022-Shift-2]
The major product formed in the following reaction, is [25-Jun-2022-Shift-2]
Two solutions and are prepared by dissolving of non-volatile solutes and , respectively in 1 of water. The ratio of depression in freezing points for and is found to be . The ratio of molar masses of
Among the following the number of state variables is _______. Internal energy (U) Volume (V) Heat (q) Enthalpy [28-Jul-2022-Shift-2]
A student needs to prepare a buffer solution of propanoic acid and its sodium salt with pH 4. The ratio of required to make buffer isGiven : [28-Jun-2022-Shift-2]
The enthalpy of combustion of propane, graphite and dihydrogen at are and respectively. The magnitude ofenthalpy of formation of propane is (Nearest integer) [25-Jul-2022-Shift-1]
Given two statements below : Statement I : In molecule the covalent radius is double of the atomic radius of chlorine. Statement II : Radius of anionic species is always greater than their parent atom
Among the given oxides of nitrogen; and , the number of compound/(s) having bond is : [28-Jun-2022-Shift-2]
Class XII students were asked to prepare one litre of buffer solution of by their Chemistry teacher: The amount of ammonium chloride to be dissolved by the student in ammonia solution to make one litr
Given below are two statements: one is labelled as Assertion and the other is labelled as Reason Assertion A : Aniline on nitration yields ortho, meta & para nitro derivatives of aniline.Reason R : Ni
aqueous solution of contains of this solution is diluted with deionized water to give solution (A). In solution (A), of are added. Total mols of in the final solution is ____ [25-Jun-2022-Shift-1]
For a first order reaction, the time required for completion of reaction is ' ' times the half life of the reaction. The value of ' ' is(Given : and ) [24-Jun-2022-Shift-2]
Choose the correct answer from the options given below : List-I (Anion) List-II (A) I. Colourless gas which turns lead acetate paper black. (B) II. Colourless gas which turns acidified potassium dichr
Choose the correct answer from the options given below: List-I (Oxide) List-II (Nature) (A) (I) Amphoteric (B) (II) Basic (C) (III) Neutral (D) (IV) Acidic [28-Jun-2022-Shift-2]
The normality of in the solution obtained on mixing of with of ________ is . (Nearest Integer) [27-Jul-2022-Shift-2]
In the given reaction, if one mole of each of and with of gives compound - (Given : Atomic masses of and are 10, 20 and , respectively.) The yield of is _______g. (Nearest integer) [28-Jul-2022-Shift-
The spin-only magnetic moment value of an octahedral complex among and , which upon reaction with excess of gives 2 moles of is ____B.M. (Nearest integer) [26-Jun-2022-Shift-1]
On complete combustion of of an organic compound containing and of and of was produced. The % composition of oxygen in the compound is _______. [28-Jul-2022-Shift-1]
Spin only magnetic moment of is _____ B.M. (round off to the closest integer) [29-Jun-2022-Shift-2]
Production of iron in blast furnace follows the following equation when of and of are allowed to react then the amount of iron (in ) produced is: [29-Jun-2022-Shift-1]
Which among the following represent reagent 'A'? [29-Jul-2022-Shift-1]
A company dissolves ' ' amount of at in 1 litre of water to prepare soda water. _______ (nearest integer)(Given : partial pressure of at bar.Henry's law constant for at .Atomic mass of and is 1,12 , a
Which of the following compounds is not aromatic? [26-Jul-2022-Shift-1]
The number of statements correct from the following for Copper (at. no. 29) is/are____(A) complexes are always paramagnetic.(B) complexes are generally colourless(C) is easily oxidized(D) In Fehling s
The amount of charge in (Faraday) required to obtain one mole of iron from is ______. (Nearest Integer) [26-Jul-2022-Shift-1]
The correct order of nucleophilicity is [26-Jun-2022-Shift-2]
of gas is adsorbed on of platinum powder at and pressure. The volume of the gas adsorbed per gram of the adsorbent is ___ [26-Jun-2022-Shift-1]
Element "E" belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above "E" in the group is [28-Jun-2022-Shift-1]
The dark purple colour of disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is : [26-Jul-2022-Shift-1]
The for bismuth sulphide is . The solubility of in at is [25-Jun-2022-Shift-2]
The correct order of increasing intermolecular hydrogen bond strength is [27-Jun-2022-Shift-2]
Match List - I with List - II. List I (Mixture) List II (Purification Process) (A)Chloroform & Aniline (I)Steam distillation (B)Benzoic acid & Napthalene (II)Sublimation (C)Water & Aniline (III)Distil
At , a sample of of gas A occupies the same volume as of hydrogen at at the same pressure. The molar mass of gas is ______ . (nearest integer) Assume that the behaviour of gases as ideal.(Given : The
An organic compound with sulfur is heated in a Carius tube. The amount of this compound which will form of barium sulphate is ______ .(Given molar mass of barium sulphate ) (Nearest integer). [30-Jun-
Number of complexes which will exhibit synergic bonding amongst, and is___ [28-Jun-2022-Shift-1]
Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is _________. [26-Jul-2022-Shift-2]
of acetic acid was contaminated with ascorbic acid to lower down its freezing point by . The value of is _______. (Nearest integer) [Given ; molar mass of ascorbic acid [28-Jul-2022-Shift-1]
Let denote the greatest integer less than or equal to . Then the value of the integral is equal to [25-Jul-2022-Shift-2]
For , let and . Then the number of elements in the set is : [25-Jul-2022-Shift-1]
is equal to [25-Jul-2022-Shift-2]
A class contains b boys and g girls. If the number of ways of selecting 3 boys and 2 girls from the class is 168 , then is equal to ________. [28-Jul-2022-Shift-2]
Let . Then [27-Jul-2022-Shift-1]
If the plane passes through the intersection of two mutually perpendicular planes and and intercepts a unit length on positive -axis, then the intercept made by the plane on the -axis is [27-Jul-2022-
Let and be two real polynomials of degree 2 and 1 respectively. If and , then the value of is_____ [29-Jun-2022-Shift-2]
Let be the solution of the differential equation , with . Then, the point for the curve is : [25-Jun-2022-Shift-1]
Let a set , where for . Define the relation from to by if and only if . Then, is : [29-Jun-2022-Shift-1]
Sum of squares of modulus of all the complex numbers satisfying is equal to_____ [28-Jun-2022-Shift-2]
The plane passing through the line and perpendicular to the plane is . If is the acute angle between the line and the -axis, then is equal to ________. [26-Jul-2022-Shift-2]
Let be the set of all passwords which are six to eight characters long, where each character is either an alphabet from or a number from with the repetition of characters allowed. If the number of pas
Let . Define as Let be a function such that Then is equal to [27-Jun-2022-Shift-2]
Let and be two functions defined by and . Then, for which of the following range of , the inequality holds ? [25-Jun-2022-Shift-1]
Let and . Then on [28-Jun-2022-Shift-2]
A biased die is marked with numbers on its faces and the probability of getting a face with mark is . If the die is thrown thrice, then the probability, that the sum of the numbers obtained is 48 , is
Let be in geometric progression with and the common ratio . A new data is constructed replacing each by . If is the mean of new data, then the greatest integer less than or equal to is ________. [28-J
Let be a root of the equation . Then, the value of is equal to : [29-Jun-2022-Shift-2]
Let a be an integer such that exists, where [t] is greatest integer . Then a is equal to : [27-Jun-2022-Shift-1]
Let be a matrix of order and . Then is equal to [28-Jun-2022-Shift-1]
The area enclosed by the curves and , above the line is: [28-Jul-2022-Shift-2]
Bag A contains 2 white, 1 black and 3 red balls and bag B contains 3 black, 2 red and n white balls. One bag is chosen at random and 2 balls drawn from it at random, are found to be 1 red and 1 black.
Let represent the principal argument of the complex number . Then, and intersect [29-Jun-2022-Shift-2]
The domain of the function is: [29-Jul-2022-Shift-2]
The sum and product of the mean and variance of a binomial distribution are and 1350 respectively. Then the number of trials in the binomial distribution is _______. [29-Jul-2022-Shift-2]
Let the function be continuous at . Then is equal to [29-Jul-2022-Shift-2]
Let and be the number of points on the curve , where the tangents to the curve are parallel to -axis and -axis, respectively. Then the value of equals ________. [27-Jul-2022-Shift-1]
Let be the plane containing the straight line and perpendicular to the plane containing the straight lines and . If is the distance of from the point , then is equal to : [25-Jul-2022-Shift-1]
The value of at is [26-Jul-2022-Shift-2]
Let be a continuous function such that . If , then is equal to: [26-Jul-2022-Shift-1]
Let , be the solution of the differential equation , with . If , then the value of is equal to____ [29-Jun-2022-Shift-2]
If , then is equal to: [25-Jul-2022-Shift-1]
The total number of four digit numbers such that each of first three digits is divisible by the last digit, is equal to____ [29-Jun-2022-Shift-2]
Let be the set of all , for which the complex number is purely imaginary and is purely real. Let . Then is equal to : [27-Jul-2022-Shift-2]
The area of the region enclosed between the parabolas and 3 is [25-Jun-2022-Shift-2]
If , then is equal to: [26-Jun-2022-Shift-2]
The general solution of the differential equation is: [25-Jul-2022-Shift-1]
Let and be two relations defined on by and Then, [27-Jul-2022-Shift-1]
The integral , where [. ] denotes the greatest integer function, is equal to [27-Jun-2022-Shift-2]
A random variable has the following probability distribution: X 0 1 2 3 4 P(X) k 2k 4k 6k 8k The value of is equal to: [24-Jun-2022-Shift-2]
Let be a twice differentiable function on . If and , then is equal to ___ [25-Jul-2022-Shift-2]
The sum of absolute maximum and absolute minimum values of the function in the interval is : [24-Jun-2022-Shift-1]
If , then at is equal to____ [27-Jun-2022-Shift-2]
Let be a random variable having binomial distribution . If , then the sum of the mean and the variance of is : [27-Jun-2022-Shift-1]
For , if , then [29-Jul-2022-Shift-2]
Let a line with direction ratios be perpendicular to the lines with direction ratios and . If the point of intersection of the line and the plane is , then is equal to _______. [29-Jul-2022-Shift-1]
If for , the function is continuous at , then : [27-Jul-2022-Shift-2]
If the mean deviation about the mean of the numbers , , where is odd, is , then is equal to___ [25-Jun-2022-Shift-2]
The probability that a randomly chosen matrix with all the entries from the set of first 10 primes, is singular, is equal to : [29-Jun-2022-Shift-1]
Let and be the vertices of the rhombus . If the direction ratios of the diagonal are , where both and are integers of minimum absolute values, then is equal to _______. [28-Jul-2022-Shift-1]
Let and . Then, for and , the least value of is : [28-Jul-2022-Shift-1]
The probability that a relation from to is both symmetric and transitive, is equal to [29-Jun-2022-Shift-2]
Let . If , then the sum of all elements of the matrix is [29-Jun-2022-Shift-2]
The value of is equal to : [25-Jun-2022-Shift-2]
The number of real solutions of the equation is_____ [28-Jun-2022-Shift-1]
The minimum value of the sum of the squares of the roots of is: [26-Jul-2022-Shift-2]
where [t] denotes greatest integer less than or equal to , is equal to: [29-Jun-2022-Shift-1]
Let the slope of the tangent to a curve at be given by . If the curve passes through the point , then the value of is equal to: [28-Jun-2022-Shift-2]
The function , is : [28-Jul-2022-Shift-2]
If are the roots of the equation , then is equal to : [25-Jul-2022-Shift-1]
If , then [25-Jun-2022-Shift-2]
The sum of the absolute maximum and absolute minimum values of the function in the interval is : [28-Jul-2022-Shift-2]
Let be such that and . If , then is equal to : [28-Jul-2022-Shift-2]
A bag contains 4 white and 6 black balls. Three balls are drawn at random from the bag. Let be the number of white balls, among the drawn balls. If is the variance of , then is equal to_______. [28-Ju
The number of bijective functions , such that , is [25-Jul-2022-Shift-2]
Let and be relations on the set such that is a prime and is an integer and is a prime and or 1 Then, the number of elements in is___ [28-Jun-2022-Shift-1]
Let be a square matrix of order 3 such that , for all . Then, the matrix is equal to : [29-Jun-2022-Shift-1]
Suppose a class has 7 students. The average marks of these students in the mathematics examination is 62 , and their variance is 20. A student fails in the examination if he/she gets less than 50 mark
If the system of linear equations. has infinitely many solutions, then the distance of the point from the plane is : [26-Jul-2022-Shift-1]
A water tank has the shape of a right circular cone with axis vertical and vertex downwards. Its semivertical angle is . Water is poured in it at a constant rate of 6 cubic meter per hour. The rate (i
Let , where are constants, represent a circle passing through the point . Then the shortest distance of the point from this circle is : [27-Jun-2022-Shift-1]
The area bounded by the curve and the line is : [26-Jun-2022-Shift-1]
If be the solution curve of the differential equation with , then is equal to: [28-Jul-2022-Shift-1]
Let the area enclosed by the -axis, and the tangent and normal drawn to the curve at the point be . Then is equal to [25-Jul-2022-Shift-2]
If , then is equal to ________. [26-Jul-2022-Shift-1]
Let be three mutually exclusive events such that and . If the maximum and minimum values of are and , then is equal to [26-Jul-2022-Shift-1]
The mean and variance of 10 observations were calculated as 15 and 15 respectively by a student who took by mistake 25 instead of 15 for one observation. Then, the correct standard deviation is ______
The mean and standard deviation of 50 observations are 15 and 2 respectively. It was found that one incorrect observation was taken such that the sum of correct and incorrect observations is 70 . If t
The odd natural number , such that the area of the region bounded by is , is equal to: [26-Jul-2022-Shift-1]
If the minimum value of , is 14 , then the value of is equal to: [28-Jul-2022-Shift-1]
is equal to [26-Jul-2022-Shift-2]
The value of the integral is equal to [24-Jun-2022-Shift-2]
Let and . Let be the value of which satisfies and be the value of which satisfies . Then is equal to _______. [28-Jul-2022-Shift-1]
In an examination, there are 10 true-false type questions. Out of 10 , a student can guess the answer of 4 questions correctly with probability and the remaining 6 questions correctly with probability
Let be a real valued continuous function on and Then, which of the following points lies on the curve ? [29-Jun-2022-Shift-2]
The value of is equal to: [29-Jun-2022-Shift-2]
Let Then : [28-Jul-2022-Shift-2]
Let be the solution of the differential equation , with . Then is equal to [28-Jun-2022-Shift-1]
The number of functions , from the set to the set such that , for every , is _________. [27-Jul-2022-Shift-2]
The set of all values of for which is the interval : [24-Jun-2022-Shift-1]
Let the system of linear equations be inconsistent. Then is equal to: [27-Jun-2022-Shift-1]
Let be a line which is normal to the curve at a point on the curve. If the point lies on the line I and is origin, then the area of the triangle OPQ is equal to___ [28-Jun-2022-Shift-1]
If for some , not all have same sign, one of the roots of the equation is also a root of the equation , then is equal to ________. [26-Jul-2022-Shift-1]
The area of the region bounded by and is equal to: [26-Jun-2022-Shift-2]
The number of distinct real roots of the equation is [24-Jun-2022-Shift-2]
Let where denotes the greatest integer . Then is equal to ________. [27-Jul-2022-Shift-2]
Let and be two complex numbers such that and . Then [25-Jun-2022-Shift-2]
Let and . Then, is equal to : [30-Jun-2022-Shift-1]
The area of the region is [28-Jun-2022-Shift-1]
Suppose be the solution curve to the differential equation such that is finite. If and are respectively the - and -intercepts of the tangent to the curve at , then the value of is equal to _________.
The shortest distance between the lines and is [25-Jul-2022-Shift-2]
If , then is equal to____ [26-Jun-2022-Shift-2]
Let be the solution curve of the differential equation , which passes through the point . Then is equal to: [29-Jul-2022-Shift-2]
Let be a binomially distributed random variable with mean 4 and variance . Then, is equal to [26-Jul-2022-Shift-2]
Let and be three positive real numbers. Let and . be such that for all . If be in arithmetic progression with mean zero, then the value of is equal to: [28-Jul-2022-Shift-1]
For any real number , let denote the largest integer less than equal to . Let be a real valued function defined on the interval by Then the value of is : [25-Jul-2022-Shift-1]
Let be a matrix with and . Then the sum of the diagonal elements of can be : [26-Jul-2022-Shift-1]
If the system of equations has infinitely many solutions, then the ordered pair is equal to : [26-Jun-2022-Shift-2]
The length of the perpendicular from the point on the line passing through and parallel to the line is : [26-Jul-2022-Shift-1]
Let be defined as . If is a function such that , then is equal to [25-Jun-2022-Shift-1]
Let and Then at is equal to: [28-Jul-2022-Shift-2]
The area of the smaller region enclosed by the curves and is equal to [27-Jul-2022-Shift-1]
If the probability that a randomly chosen 6-digit number formed by using digits 1 and 8 only is a multiple of 21 is , then is equal to___ [26-Jun-2022-Shift-2]
Let be a function such that for natural numbers and . If , then the value of for which holds, is : [25-Jun-2022-Shift-1]
Let be a quadratic polynomial with leading coefficient 1 such that , and . If the equations and have a common real root, then is equal to___ [25-Jul-2022-Shift-2]
If the foot of the perpendicular from the point on the plane , is , then the distance of the point from the plane , measured parallel to a line with direction ratios , is equal to : [29-Jul-2022-Shift
Water is being filled at the rate of in a right circular conical vessel (vertex downwards) of height and diameter . When the height of the water level is , the rate (in ) at which the wet conical surf
The number of 5-digit natural numbers, such that the product of their digits is 36 , is _______. [26-Jul-2022-Shift-1]
Let and . Then which one of the following statements is NOT true? [25-Jun-2022-Shift-2]
The sum of all the real roots of the equation is [24-Jun-2022-Shift-2]
Let be the foot of perpendicular drawn from the point to the plane . If is a point on the plane such that , then the area of is equal to: [29-Jul-2022-Shift-2]
Let and Then the number of elements in is : [28-Jul-2022-Shift-2]
Five numbers are randomly selected from the numbers and are arranged in the increasing order . The probability that and is : [27-Jun-2022-Shift-1]
The area enclosed by and that lies outside the triangle formed by , is equal to: [29-Jun-2022-Shift-1]
The distance of the point from the plane along the line is equal to: [30-Jun-2022-Shift-1]
The mean and standard deviation of 40 observations are 30 and 5 respectively. It was noticed that two of these observations 12 and 10 were wrongly recorded. If is the standard deviation of the data af
There are ten boys and five girls in a class. Then the number of ways of forming a group consisting of three boys and three girls, if both and together should not be the members of a group, is___ [26-
Let . Then is equal to ________. [27-Jul-2022-Shift-1]
Let be functions defined by , where is the maximum of the powers of those primes such that divides , and , for all . Then, the function is [27-Jul-2022-Shift-1]
Considering the principal values of the inverse trigonometric functions, the sum of all the solutions of the equation is equal to : [28-Jul-2022-Shift-1]
The ordered pair , for which the system of linear equations has no solution, is : [26-Jun-2022-Shift-1]
Let where . Then, the number of elements in the set is____ [28-Jun-2022-Shift-2]
Let be the distance between the foot of perpendiculars of the points and on the plane . Then is equal to___ [29-Jun-2022-Shift-1]
Let and . Then the number of elements in the set and is___ [25-Jun-2022-Shift-2]
Let . If , then is equal to ________. [27-Jul-2022-Shift-2]
Let , represents a circle with center . Then, is equal to : [30-Jun-2022-Shift-1]
Let be the set of all integral values of for which the sum of squares of two real roots of the quadratic equation is minimum. Then : [30-Jun-2022-Shift-1]
The slope of normal at any point on the curve is given by . If the curve passes through the point , then e. is equal to [24-Jun-2022-Shift-2]
If the tangent to the curve at the point is also tangent to the curve at the point , then is equal to ________. [29-Jul-2022-Shift-2]
If attains maximum value at the point on the line passing through the points and , then also lies on the line : [30-Jun-2022-Shift-1]
The number of elements in the set and is___ [28-Jun-2022-Shift-1]
The mean and variance of the data , where , are 6 and respectively. Then is equal to [27-Jun-2022-Shift-2]
A hostel has 100 students. On a certain day (consider it day zero) it was found that two students are infected with some virus. Assume that the rate at which the virus spreads is directly proportional
Let a biased coin be tossed 5 times. If the probability of getting 4 heads is equal to the probability of getting 5 heads, then the probability of getting atmost two heads is : [26-Jun-2022-Shift-1]
The total number of 5-digit numbers, formed by using the digits , 7 without repetition, which are multiple of 6 , is [28-Jun-2022-Shift-1]
Let . If , then the value of is equal to____ [30-Jun-2022-Shift-1]
The number of one-one functions such that is [24-Jun-2022-Shift-1]
Let be two real valued functions defined as and where and are real constants. If (gof) is differentiable at , then (gof) is equal to : [26-Jun-2022-Shift-1]
If the maximum value of , for which the function is non-decreasing in , is , then is equal to [26-Jul-2022-Shift-2]
Let the foot of the perpendicular from the point on the line be . Then the distance of from the plane is [27-Jun-2022-Shift-2]
Let , where is a non-zero real number an . If , then the positive integral value of is____ [29-Jun-2022-Shift-2]
If the mean deviation about median for the numbers , arranged in the ascending order, is 6 then the median is [25-Jul-2022-Shift-2]
The value of is equal to: [25-Jun-2022-Shift-1]
If the system of equations has infinitely many solutions, then is equal to [29-Jul-2022-Shift-2]
The sum of the absolute minimum and the absolute maximum values of thefunction in the interval is : [26-Jun-2022-Shift-1]
Let the solution curve of the differential equation pass through the point . Then, is equal to : [29-Jul-2022-Shift-1]
Let be the roots of the quadratic equation . If , then is equal to [29-Jul-2022-Shift-2]
The letters of the word 'MANKIND' are written in all possible orders and arranged in serial order as in an English dictionary. Then the serial number of the word 'MANKIND' is [25-Jul-2022-Shift-1]
The probability, that in a randomly selected 3-digit number at least two digits are odd, is [28-Jun-2022-Shift-1]
Let and . If , then the sum of all the elements in the set is equal to _______. [29-Jul-2022-Shift-1]
Let . Then : [30-Jun-2022-Shift-1]
If the solution curve of the differential equation passes through the point , then the abscissa of the point on the curve whose ordinate is , is [27-Jun-2022-Shift-2]
If , then [24-Jun-2022-Shift-2]
Let . If and , for all , then the value of is equal to____ [29-Jun-2022-Shift-1]
For if the minimum value of is , then a value Question: of is [25-Jul-2022-Shift-2]
Let . If for all , then is equal to : [26-Jun-2022-Shift-1]
The area of the region is equal to [29-Jul-2022-Shift-1]
Let the plane pass through and is perpendicular to the planes and . If are integers and , then the value of is equal to : [28-Jun-2022-Shift-2]
The area bounded by the curves and is [26-Jul-2022-Shift-2]
A six faced die is biased such that a prime number a composite number . Let be a random variable that counts the number of times one gets a perfect square on some throws of this die. If the die is thr
If the system of linear equations where, , has no solution, then [28-Jun-2022-Shift-1]
If , then the value of is equal to____ [28-Jun-2022-Shift-2]
The domain of the function [24-Jun-2022-Shift-1]
The area of the region enclosed by and , is equal to : [27-Jul-2022-Shift-2]
For , consider a relation on given by is a multiple of 7 . The relation is an equivalence relation if and only if : [28-Jul-2022-Shift-1]
The value of the integral is equal to: [27-Jun-2022-Shift-1]
The probability distribution of X is : X 0 1 2 3 P(X) For the minimum possible value of d, sixty times the mean of X is equal to _______________. [30-Jun-2022-Shift-1]
Let the locus of the centre , of the circle which touches the circle externally and also touches the -axis be . Then the area bounded by and the line is: [25-Jul-2022-Shift-1]
Let and be two distinct solutions of the differential equation , with and respectively. Then, the number of points of intersection of and is [27-Jul-2022-Shift-1]
If and are coplanar, then the product of all possible values of is: [29-Jul-2022-Shift-2]
If , then is equal to : [29-Jul-2022-Shift-1]
If , then the maximum value of is : [29-Jul-2022-Shift-1]
is equal to [29-Jun-2022-Shift-1]
Let and be two events such that and Consider(S1) ,(S2) Then [28-Jul-2022-Shift-2]
Let . Let be such that . Then is equal to [27-Jul-2022-Shift-1]
If , where , then which of the following is NOT correct? [29-Jul-2022-Shift-1]
The sum of the cubes of all the roots of the equation ____ [26-Jun-2022-Shift-1]
The value of the integral ____ [26-Jun-2022-Shift-1]
If the line of intersection of the planes and makes an angle with the plane , then the direction cosines of the line are : [27-Jul-2022-Shift-2]
Let be a function defined as where is the greatest integer less than or equal to . If exists, then the value of is equal to [27-Jul-2022-Shift-1]
Let satisfy . If , then is equal to___ [26-Jun-2022-Shift-2]
Let . Then the value of is [24-Jun-2022-Shift-1]
Let be a matrix of order , whose entries are from the set . If the sum of all the entries of is a prime number , then the number of such matrices is____ [27-Jun-2022-Shift-2]
Let the solution curve of the differential equation be . Then is equal to: [29-Jun-2022-Shift-1]
If the sum of the squares of the reciprocals of the roots and of the equation is 15 , then is equal to: [24-Jun-2022-Shift-1]
Let [t] denote the greatest integer less than or equal to . Then, the value of the integral is equal to [28-Jun-2022-Shift-1]
Let be complex numbers satisfying . Then the least value of , such that , is equal to ________. [28-Jul-2022-Shift-2]
The acute angle between the planes and , when and are the planes passing through the intersection of the planes and and the points and , respectively, is [28-Jun-2022-Shift-1]
Let the points on the plane be equidistant from the points and . Then the acute angle between the plane and the plane is [24-Jun-2022-Shift-2]
The value of for which , is equal to [25-Jun-2022-Shift-2]
Let and be two non-zero real matrices such that is a zero matrix. Then [29-Jul-2022-Shift-1]
The integral is equal to: [29-Jul-2022-Shift-1]
If , then the integral value of is equal to [25-Jul-2022-Shift-1]
In an examination, there are 5 multiple choice questions with 3 choices, out of which exactly one is correct. There are 3 marks for each correct answer, marks for each wrong answer and 0 mark if the q
Let the function , be decreasing in and increasing in . A tangent to the parabola at a point on it passes through the point but does not pass through the point . If the equation of the normal at is :
Let and be two events such that the conditional probabilities and . Then : [25-Jun-2022-Shift-1]
The mean and standard deviation of 15 observations are found to be 8 and 3 respectively. On rechecking it was found that, in the observations, 20 was misread as 5 . Then, the correct variance is equal
The integral is equal to [26-Jun-2022-Shift-2]
The system of equations is consistent for all in the set [25-Jun-2022-Shift-2]
Let be the mirror image of the point with respect to the plane . If a line passing through , parallel to the line meets the plane at , then is equal to : [25-Jun-2022-Shift-1]
The number of distinct real roots of the equation ____________. [26-Jul-2022-Shift-1]
The area (in sq. units) of the region enclosed between the parabola and the line is ___ [24-Jun-2022-Shift-2]
Let the mean and the variance of 20 observations be 15 and 9 , respectively. For , if the mean of is 178 , then the square of the maximum value of is equal to ______. [29-Jul-2022-Shift-1]
Let . If is the range of the function , then is equal to : [26-Jun-2022-Shift-1]
Let and . Then the number of elements in the set is _______. [26-Jul-2022-Shift-2]
If the absolute maximum value of the function in the interval is , then : [25-Jul-2022-Shift-1]
For consider the real valued function and . Let and be in an arithmetic progression with mean and positive common difference. If for all , then the absolute difference between the roots of is _______.
Let for some . Then the value of is : [26-Jul-2022-Shift-2]
Consider a function , satisfying with . Then is equal to [29-Jan-2023 Shift 2]
Considering only the principal values of the inverse trigonometric functions, the domain of the function is : [28-Jul-2022-Shift-1]
The number of ways, 16 identical cubes, of which 11 are blue and rest are red, can be placed in a row so that between any two red cubes there should be at least 2 blue cubes, is [27-Jun-2022-Shift-1]
The number of distinct real roots of is: [27-Jun-2022-Shift-1]
If a random variable follows the Binomial distribution such that , then the value of is equal to: [24-Jun-2022-Shift-1]
If the angle made by the tangent at the point on the curve , with the positive -axis is , then is equal to: [25-Jun-2022-Shift-2]
Consider a curve in the first quadrant as shown in the figure. Let the area is twice the area . Then the normal to the curve perpendicular to the line does NOT pass through the point. [27-Jul-2022-Shi
If is the solution of the differential equation such that , then is equal to [25-Jun-2022-Shift-2]
The total number of three-digit numbers, with one digit repeated exactly two times, is___ [25-Jun-2022-Shift-2]
Let a circle in complex plane pass through the points and . If is a point on such that the line through and is perpendicular to the line through and , then is equal to: [25-Jun-2022-Shift-1]
Let be the region bounded by the curves and . The curve divides into two regions of areas . If , then is equal to [24-Jun-2022-Shift-1]
Which of the following matrices can NOT be obtained from the matrix by a single elementary row operation? [29-Jul-2022-Shift-2]
Let be functions defined by and where denote the greatest integer less than or equal to . Then, the function fog is discontinuous at exactly : [28-Jun-2022-Shift-2]
Let and . Then, : [24-Jun-2022-Shift-1]
The number of matrices , where , such that , is _________. [26-Jul-2022-Shift-2]
Let and be the roots of the equation . Then, the value of is equal to: [29-Jun-2022-Shift-1]
If the solution curve of the differential equation passes through the points and , then [29-Jul-2022-Shift-2]
The number of ways to distribute 30 identical candies among four children and so that receives at least 4 and at most 7 candies, receives at least 2 and at most 6 candies, is equal to: [28-Jun-2022-Sh
If the system of linear equations , where has infinitely many solutions then the value of is equal to_____ [28-Jun-2022-Shift-2]
Let denote the greatest integer and denote the fractional part of . The integral value of for which the left hand limit of the function at is equal to , is____ [27-Jun-2022-Shift-2]
Bag I contains 3 red, 4 black and 3 white balls and Bag II contains 2 red, 5 black and 2 white balls. One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II. The ball so dra
The number of real values of , such that the system of linear equations has no solutions, is [25-Jul-2022-Shift-2]
Let be a quadratic polynomial such that . If one of the roots of is , then the sum of the roots of is equal to : [28-Jun-2022-Shift-2]
Let be such that the equation has a repeated root . If and are the roots of the equation , then is equal to : [25-Jun-2022-Shift-2]
Let and be two real numbers such that and . Then is equal to____ [26-Jun-2022-Shift-2]
The number of for which the system of linear equations has no solution, is : [25-Jul-2022-Shift-1]
If is the solution of the differential equation then is equal to: [24-Jun-2022-Shift-1]
Let and . For , if , then is equal to ________. [29-Jul-2022-Shift-2]
Out of female and male candidates appearing in an exam, candidates qualify it. The number of females qualifying the exam is twice the number of males qualifying it. A candidate is randomly chosen from
If and , then the maximum value of is : [26-Jul-2022-Shift-1]
Let be a matrix having entries from the set . The number of all such matrices having sum of all the entries equal to 5 , is [25-Jun-2022-Shift-1]
Let and .If then is equal to [24-Jun-2022-Shift-1]
Let be a continuous function satisfying , for all where and is a positive integer. If and , then : [28-Jun-2022-Shift-2]
Let the mean and the variance of 5 observations be and respectively. If the mean and variance of the first 4 observation are and a respectively, then is equal to: [29-Jun-2022-Shift-1]
The minimum value of the twice differentiable function , : [28-Jul-2022-Shift-1]
If and respectively are the number of local maximum and local minimum points of the function , then the ordered pair is equal to [27-Jun-2022-Shift-2]
Let be a differentiable function in . If , then is equal to [27-Jun-2022-Shift-2]
Let and . If is the point in which is closest to 4i, then is equal to____ [24-Jun-2022-Shift-2]
Let the minimum value of is attained at . Then is equal to [27-Jul-2022-Shift-1]
Let and respectively be the minimum and the maximum values of . Then is equal to : [30-Jun-2022-Shift-1]
If the system of linear equations , where has infinitely many solutions, then is equal to: [29-Jun-2022-Shift-1]
A vector is parallel to the line of intersection of the plane determined by the vectors and the plane determined by the vectors . The obtuse angle between and the vector is [26-Jul-2022-Shift-2]
Let and , where [t] is the greatest integer . Then, in the open interval , the number of points where fog is discontinuous is equal to____ [25-Jun-2022-Shift-2]
Numbers are to be formed between 1000 and 3000 , which are divisible by 4 , using the digits and 6 without repetition of digits. Then the total number of such numbers is _______. [26-Jul-2022-Shift-2]
If be a complex number such that , then the maximum value of is: [29-Jul-2022-Shift-2]
If and , then : [26-Jul-2022-Shift-1]
Let . Then is equal to___ [26-Jun-2022-Shift-1]
Let and . Then is : [26-Jun-2022-Shift-1]
The shortest distance between the lines and , is [27-Jun-2022-Shift-2]
If the area of the region is , then is equal to_____ [27-Jun-2022-Shift-2]
The area of the bounded region enclosed by the curve and the -axis is : [28-Jun-2022-Shift-2]
If and are two events such that and , then is equal to [25-Jul-2022-Shift-2]
If the sum and the product of mean and variance of a binomial distribution are 24 and 128 respectively, then the probability of one or two successes is: [25-Jul-2022-Shift-1]
Let be a invertible matrix. If , then is equal to : [26-Jun-2022-Shift-1]
Let the line intersect the plane containing the lines and at the point . Then the value of equals ________. [27-Jul-2022-Shift-1]
The value of is equal to : [28-Jun-2022-Shift-2]
For , let the solutions of the equation be and , where the inverse trigonometric functions take only principal values. If the solutions of the equation are and , then is equal to ________. [27-Jul-202
Let be a function defined by . Then, which of the following is NOT true? [29-Jun-2022-Shift-2]
The sum of the maximum and minimum values of the function in the interval , where is the greatest integer , is__ [25-Jul-2022-Shift-2]
The area of the region given by is : [25-Jul-2022-Shift-1]
If , then : [27-Jun-2022-Shift-1]
The area of the polygon, whose vertices are the non-real roots of the equation is : [27-Jun-2022-Shift-1]
The mean of the numbers is 6 and their variance is . If is the mean deviation of the numbers about the mean, then is equal to : [26-Jun-2022-Shift-1]
Let . If is the number of points, where is not differentiable and is the number of points, where is not continuous, then the ordered pair is equal to [26-Jun-2022-Shift-2]
Let be a 4-element permutation with for and for , such that either , are consecutive integers or are consecutive integers. Then the number of such permutations is equal to___ [29-Jun-2022-Shift-1]
The total number of 3-digit numbers, whose greatest common divisor with 36 is 2 , is____ [26-Jun-2022-Shift-2]
Let , where denotes the greatest integer less than or equal to . Then the number of points in where is not differentiable is [25-Jul-2022-Shift-1]
The number of 6-digit numbers made by using the digits , without repetition and which are multiple of 15 is___ [30-Jun-2022-Shift-1]
Let the system of linear equations have a unique solution . If and are collinear points, then the sum of absolute values of all possible values of is [24-Jun-2022-Shift-2]
If , then is equal to : [29-Jul-2022-Shift-1]
Let be a function defined by . Then is equal to____ [27-Jun-2022-Shift-1]
If the mirror image of the point in the plane is , then is equal to: [29-Jun-2022-Shift-1]
is equal to: [27-Jun-2022-Shift-1]
The number of values of for which the system of equations: is inconsistent, is [24-Jun-2022-Shift-1]
The number of real solutions of is equal to [28-Jun-2022-Shift-1]
Let the solution curve of the differential equation pass through the origin. Then is equal to____ [26-Jun-2022-Shift-1]
If for some , the area of the region is equal to , then the area of the region is equal to____ [30-Jun-2022-Shift-1]
is equal to : [30-Jun-2022-Shift-1]
Let lie on the plane , for some . The shortest distance of the plane from the origin is : [29-Jun-2022-Shift-2]
Let be the set of all the natural numbers, for which the line is a tangent to the curve at the point . Then : [26-Jun-2022-Shift-1]
The number of 7-digit numbers which are multiples of 11 and are formed using all the digits , 5,7 and 9 is__ [24-Jun-2022-Shift-2]
The sum of all the elements of the set is___ [24-Jun-2022-Shift-2]
The value of the integral is equal to________. [28-Jul-2022-Shift-2]
The number of 3-digit odd numbers, whose sum of digits is a multiple of 7 , is____ [25-Jun-2022-Shift-1]
The number of matrices of order , whose entries are either 0 or 1 and the sum of all the entries is a prime number, is ________. [29-Jul-2022-Shift-1]
The real part of the complex number is equal to: [30-Jun-2022-Shift-1]
Let be a relation from the set to itself such that , where are prime numbers . Then, the number of elements in is: [29-Jul-2022-Shift-1]
The function defined by is continuous for all in : [28-Jul-2022-Shift-2]
is equal to _______. [28-Jul-2022-Shift-1]
The domain of the function is : [29-Jun-2022-Shift-1]
For the curve , the value of , at the point , on , is equal to ________. [27-Jul-2022-Shift-2]
A wire of length is to be cut into two pieces. One of the pieces is to be made into a square and the other into an equilateral triangle. Then, the length of the side of the equilateral triangle, so th
is equal to [25-Jun-2022-Shift-2]
Let . Then the set of all values of , for which has maximum value at , is : [26-Jul-2022-Shift-1]
The integral is equal to [26-Jul-2022-Shift-2]
Let be the solution of the differential equation , and If , then is equal to____ [27-Jun-2022-Shift-2]
If two straight lines whose direction cosines are given by the relations are parallel, then the positive value of is : [27-Jun-2022-Shift-1]
If the numbers appeared on the two throws of a fair six faced die are and , then the probability that , for all , is : [25-Jul-2022-Shift-1]
The number of points of intersection of and , is [27-Jun-2022-Shift-2]
For real numbers , letArea and andArea and Then, the value of is equal to____ [29-Jun-2022-Shift-2]
is equal to : [26-Jul-2022-Shift-1]
If denotes the greatest integer , then the value of is: [29-Jul-2022-Shift-2]
The number of values of such that the variance of is a natural number is : [29-Jun-2022-Shift-2]
Let and . If Area (Area ), then is equal to : [27-Jun-2022-Shift-1]
is equal to : [26-Jun-2022-Shift-2]
Let be a twice differentiable function in such that and . If the line intersects the graph of at only two distinct points in , then the least number of points , at which , is _______. [28-Jul-2022-Shi
The number of natural numbers lying between 1012 and 23421 that can be formed using the digits (repetition of digits is not allowed) and divisible by 55 is _______. [29-Jul-2022-Shift-2]
Let be the solution of the differential equation such that . Then, is equal to : [28-Jun-2022-Shift-2]
Let the image of the point in the line be Q. Let be a point that divides internally the line segment in the ratio . Then the value of is equal to___ [28-Jun-2022-Shift-2]
If a point lies in the region bounded by the -axis, straight lines and , then the probability that is [27-Jun-2022-Shift-2]
Let be a differentiable function such that , for all , where is an arbitrary constant. Then : [25-Jun-2022-Shift-1]
Let for every . Then the sum of all the elements of the set is___ [25-Jul-2022-Shift-2]
If the tangent at the point on the curve passes through the origin, then , ) does NOT lie on the curve: [24-Jun-2022-Shift-1]
If is the solution of the differential equation and then is equal to [29-Jun-2022-Shift-2]
Let be a tangent to the hyperbola . Then is equal to: [24-Jun-2022-Shift-1]
If the sum of all the roots of the equation is , then is equal to____ [27-Jun-2022-Shift-1]
Let and . Then, the value of is equal to _______. [27-Jul-2022-Shift-1]
If a random variable follows the Binomial distribution such that , then is equal to : [30-Jun-2022-Shift-1]
Let be the set containing all matrices with entries from . The total number of matrices such that the sum of all the diagonal elements of is 6 is ________. [27-Jul-2022-Shift-1]
Let have a binomial distribution such that the sum and the product of the mean and variance of are 24 and 128 respectively. If , then is equal to : [27-Jul-2022-Shift-2]
Consider a cuboid of sides and and a closed hemisphere of radius . If the sum of their surface areas is a constant , then the ratio , for which the sum of their volumes is maximum, is : [26-Jun-2022-S
is equal to : [24-Jun-2022-Shift-2]
Let be the solution of the differential equation with If , then the value of is equal to____ [29-Jun-2022-Shift-1]
is equal to [25-Jul-2022-Shift-2]
Let be the sample space of all five digit numbers. It is the probability that a randomly selected number from , is a multiple of 7 but not divisible by 5 , then is equal to [27-Jul-2022-Shift-1]
Let : H.C.F. andLet . Then the sum of all the elements of is______ [26-Jun-2022-Shift-1]
If , where are integers, then is equal to ________. [28-Jul-2022-Shift-1]
If , then I equals [29-Jun-2022-Shift-2]
If the function is continuous at , then is equal to: [26-Jul-2022-Shift-1]
If the solution of the differential equation satisfies , then the value of is__ [26-Jun-2022-Shift-2]
The curve touches the -axis at the point and cuts the axis at the point , where is equal to 3 . Then the local maximum value of is: [25-Jul-2022-Shift-1]
is equal to : [26-Jun-2022-Shift-1]
Let be a function defined by . If the function , then the greatest integer less than or equal to is___ [25-Jun-2022-Shift-1]
Let . Consider (S1): (S2) : Then, [27-Jul-2022-Shift-2]
Let and . Then is equal to [26-Jun-2022-Shift-1]
Let the plane be rotated through a right angle about its line of intersection with the plane . If the mirror image of the point in the rotated plane is , then : [26-Jun-2022-Shift-1]
Let . If and are two matrices given by and then is : [25-Jun-2022-Shift-1]
Let and . Then a value of is [24-Jun-2022-Shift-2]
If the two lines and are perpendicular, then an angle between the lines and is : [26-Jun-2022-Shift-1]
Let and . If , then is equal to [25-Jul-2022-Shift-2]
The domain of the function , where is the greatest integer function, is : [27-Jul-2022-Shift-2]
A plane is parallel to two lines whose direction ratios are and and it contains the point . Let intersect the co-ordinate axe at the points making the intercepts . If is the volume of the tetrahedron
Let be the solution curve of the differential equation , which passes through the point . Then is equal to ________. [27-Jul-2022-Shift-1]
Let the lines and be coplanar and be the plane containing these two lines. Then which of the following points does NOT lie on P? [28-Jul-2022-Shift-2]
Let be a polynomial function such that . Then, the value of is equal to: [25-Jun-2022-Shift-1]
If and , then the value of is [26-Jul-2022-Shift-2]
If is the solution of the differential equation then the local maximum value of the function is : [26-Jun-2022-Shift-2]
Let and be two square matrices of order 2. If and for some , then is equal to: [30-Jun-2022-Shift-1]
The number of points, where the function , , is NOT differentiable, is : [29-Jul-2022-Shift-1]
Let and be two matrices such that and . Then is equal to [27-Jun-2022-Shift-2]
Let and be any two symmetric and skew symmetric matrices respectively. Then which of the following is NOT true? [28-Jul-2022-Shift-2]
Let and be twice differentiable even functions on such that , and . Then, the minimum number of solutions of in is equal to____ [29-Jun-2022-Shift-2]
Let a line having direction ratios intersect the lines and at the points and . Then is equal to__ [24-Jun-2022-Shift-1]
For the function , which one of the following is NOT correct? [24-Jun-2022-Shift-1]
The sum of all real values of for which is equal to ________. [28-Jul-2022-Shift-1]
If the inverse trigonometric functions take principal values then is equal to: [26-Jun-2022-Shift-2]
The surface area of a balloon of spherical shape being inflated, increases at a constant rate. If initially, the radius of balloon is 3 units and after 5 seconds, it becomes 7 units, then its radius a
Let 0 be the origin and be the point . If is the point , such that is a right angled isosceles triangle with as hypotenuse, then which of the following is NOT true? [26-Jul-2022-Shift-1]
The total number of functions, such that , is equal to : [25-Jul-2022-Shift-1]
The foot of the perpendicular from a point on the circle to the plane lies on which one of the following curves? [28-Jul-2022-Shift-1]
If satisfies and , then [26-Jul-2022-Shift-2]
The probability that a randomly chosen one-one function from the set to the set satisfies is : [28-Jun-2022-Shift-2]
Let be a sample space of a random experiment such that for every . Then the number of elements in the set is___ [27-Jun-2022-Shift-2]
Let . Then the number of elements in the set is onto and is____ [28-Jun-2022-Shift-2]
Let be defined as and be defined as . Then the function fog is : [26-Jun-2022-Shift-2]
Let . Then the set of all values of , for which for some , is [29-Jul-2022-Shift-2]
Let be the largest value of for which the function is increasing for all . Then is equal to : [24-Jun-2022-Shift-2]
Let the mirror image of the point with respect to the plane be . If , then is equal to [27-Jun-2022-Shift-1]
, where is the greatest integer function, is equal to: [27-Jul-2022-Shift-2]
The value of is [27-Jun-2022-Shift-2]
If and are continuous on , then is equal to : [26-Jul-2022-Shift-1]
Let be the solution of the differential equation If for some , then is equal to __ [25-Jul-2022-Shift-2]
Let and let . Then the number of elements in is [24-Jun-2022-Shift-2]
Let where [t] denotes greatest integer . If is the number of points where is not continuous and is the number of points where is not differentiable, then the ordered pair is : [24-Jun-2022-Shift-2]
If , where is a constant, then at is equal to : [27-Jun-2022-Shift-1]
Let . Define : either or and the sum of all the elements of is a prime number . Then the number of elements in the set is____ [25-Jul-2022-Shift-2]
The mean and variance of a binomial distribution are and respectively. If , then or 5 is equal to : [26-Jul-2022-Shift-1]
If , then is equal to : [27-Jun-2022-Shift-1]
If the plane is rotated about its line of intersection with the plane by an angle of , then the plane after the rotation passes through the point : [26-Jun-2022-Shift-2]
Let . Then the probability, that a randomly chosen number from the set such that , is : [29-Jul-2022-Shift-1]
The differential equation of the family of circles passing through the points and is : [28-Jul-2022-Shift-2]
The one division of main scale of Vernier callipers reads and 10 divisions of Vernier scale is equal to the 9 divisions on main scale. When the two jaws of the instrument touch each other, the zero of
In an experiment to verify Newton's law of cooling, a graph is plotted between the temperature difference of the water and surroundings and time as shown in figure. The initial temperature of water is
Let and . Then the number of vectors such that and is : [27-Jun-2022-Shift-1]
Two streams of photons, possessing energies equal to five and ten times the work function of metal are incident on the metal surface successively. The ratio of maximum velocities of the photoelectron
Two coherent sources of light interfere. The intensity ratio of two sources is 1:4. For this interference pattern if the value of is equal to , then will be : [27-Jul-2022-Shift-2]
A tunning fork of frequency resonates in the fundamental mode with an air column of length in a cylindrical tube closed at one end. When water is slowly poured in it, the minimum height of water requi
A radar sends an electromagnetic signal of electric field and magnetic field which strikes a target on line of sight at a distance of in a medium. After that, a part of signal (echo) reflects back tow
A fighter jet is flying horizontally at a certain altitude with a speed of . When it passes directly overhead an anti-aircraft gun, a bullet is fired from the gun, at an angle with the horizontal, to
A nucleus of mass at rest splits into two parts having masses and . The ratio of de Broglie wavelength of two parts will be : [26-Jul-2022-Shift-2]
A fly wheel is accelerated uniformly from rest and rotates through 5 rad in the first second. The angle rotated by the fly wheel in the next second, will be: [24-Jun-2022-Shift-2]
In the wave equation the velocity of the wave will be: [28-Jul-2022-Shift-1]
A freshly prepared radioactive source of half life 2 hours 30 minutes emits radiation which is 64 times the permissible safe level. The minimum time, after which it would be possible to work safely wi
The current I flowing through the given circuit will be ________ A. [29-Jul-2022-Shift-1]
An expression for oscillating electric field in a plane electromagnetic wave is given as Then, the value of magnetic field amplitude will be :(Given : speed of light in Vacuum c = ) [30-Jun-2022-Shift
In the given circuit 'a' is an arbitrary constant. The value of for which the equivalent circuit resistance is minimum, will be . The value of is _____ [27-Jun-2022-Shift-2]
A small toy starts moving from the position of rest under a constant acceleration. If it travels a distance of in , the distance travelled by the toy in the next will be : [29-Jun-2022-Shift-2]
Two beams of light having intensities and interfere to produce a fringe pattern on a screen. The phase difference between the two beams are and at points and respectively. The difference between the r
The magnetic flux through a coil perpendicular to its plane is varying according to the relation Weber. If the resistance of the coil is 5 ohm, then the induced current through the coil at will be, [2
The radii of two planets and are in the ratio . Their densities are and respectively. The ratio of their acceleration due to gravity is : [30-Jun-2022-Shift-1]
A long solenoid carrying a current produces a magnetic field along its axis. If the current is doubled and the number of turns per is halved, the new value of magnetic field will be equal to [25-Jun-2
A battery of is connected to the circuit as shown below. The current I drawn from the battery is: [26-Jul-2022-Shift-2]
Magnetic flux (in weber) in a closed circuit of resistance varies with time at . The magnitude of the induced current at will be ____ . [25-Jul-2022-Shift-2]
If represents the actual number of deflections in a converted galvanometer of resistance and shunt resistance . Then the total current I when its figure of merit is will be: [25-Jun-2022-Shift-2]
If the electric potential at any point in space is given by volt. The electric field at the point will be : [29-Jun-2022-Shift-2]
An particle and a proton are accelerated from rest through the same potential difference. The ratio of linear momenta acquired by above two particles will be: [29-Jul-2022-Shift-2]
A block 'A' takes to slide down a frictionless incline of and length 'I', kept inside a lift going up with uniform velocity 'v'. If the incline is changed to , the time taken by the block, to slide do
Match List I with List II. List I List II A.Torque l. B.Stress II. C.Latent Heat III. D.Power IV. Choose the correct answer from the options given below : [29-Jul-2022-Shift-2]
Two identical cells each of emf are connected in parallel across a parallel combination of two resistors each of resistance . A voltmeter connected in the circuit measures . The internal resistance of
A beam of light travelling along XXX-axis is described by the electric field . The ratio of electric force to magnetic force on a charge q moving along YYY-axis with a speed of will be : (Given speed
Let be a vector which is perpendicular to the vector . If , then the projection of the vector on the vector is : [28-Jun-2022-Shift-2]
The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ pipe is . The length of the open organ pipe is ______
is the ratio of energies of photons produced due to transition of an electron of hydrogen atom from its(i) third permitted energy level to the second level and(ii) the highest permitted energy level t
A steel wire of length and a copper wire of length , both of radius are connected end to end. When stretched by a load, the net elongation is found to be . The load applied, in Newton, will be: ( Give
A charge particle moves along circular path in a uniform magnetic field in a cyclotron. The kinetic energy of the charge particle increases to 4 times its initial value. What will be the ratio of new
Two projectiles are thrown with same initial velocity making an angle of and with the horizontal respectively. The ratio of their respective ranges will be : [26-Jul-2022-Shift-2]
Which of the following equations correctly represents a travelling wave having wavelength , frequency and travelling in positive -axis direction? [30-Jun-2022-Shift-1]
List - I List - II (a) Ultraviolet rays (i) Study crystal structure (b) Microwaves (ii) Greenhouse effect (c) Infrared rays (iii) Sterilizing surgical instrument (d) X-rays (iv) Radar system Choose th
In Bohr's atomic model of hydrogen, let K, and are the kinetic energy, potential energy and total energy of the electron respectively. Choose the correct option when the electron undergoes transitions
A student in the laboratory measures thickness of a wire using screw gauge. The readings are and . The percentage error is . The value of is [28-Jun-2022-Shift-2]
The velocity of a small ball of mass ' ' and density , when dropped in a container filled with glycerin, becomes constant after some time. If the density of glycerin is , then the viscous force acting
A solid spherical ball is rolling on a frictionless horizontal plane surface about its axis of symmetry. The ratio of rotational kinetic energy of the ball to its total kinetic energy is [26-Jun-2022-
If and are the self inductance, capacitance and resistance respectively, which of the following does not have the dimension of time? [27-Jun-2022-Shift-2]
The de Broglie wavelengths for an electron and a photon are and respectively. For the same kinetic energy of electron and photon, which of the following presents the correct relation between the de Br
A lead bullet penetrates into a solid object and melts. Assuming that of its kinetic energy is used to heat it, the initial speed of bullet is :(Given : initial temperature of the bullet , Melting poi
Two bodies and of masses and are moving such that the momentum of body is twice that of the body . The ratio of their kinetic energies will be : [30-Jun-2022-Shift-1]
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A): Clothes containing oil or grease stains cannot be cleaned by water wash. Reason
For a transistor to act as a switch, it must be operated in [27-Jun-2022-Shift-2]
Choose the correct answer from the options given below : List-I List-II (A) Moment of inertia of solid sphere of radius R about any tangent. (I) (B) Moment of inertia of hollow sphere of radius (R) ab
A bullet of mass having initial kinetic energy is shot inside a long swimming pool as shown in the figure. If it's kinetic energy reduces to within , the minimum length of the pool, the bullet has to
A metal wire of length and cross-sectional area has breaking stress . A block of is attached at one end of the string and is rotating in a horizontal circle. The maximum linear velocity of block will
For the network shown below, the value of is _______V. [29-Jun-2022-Shift-1]
A smooth circular groove has a smooth vertical wall as shown in figure. A block of mass moves against the wall with a speed . Which of the following curve represents the correct relation between the n
Two charged particles, having same kinetic energy, are allowed to pass through a uniform magnetic field perpendicular to the direction of motion. If the ratio of radii of their circular paths is and t
For the given circuit the current through battery of just after closing the switch 'S' will be ________ A. [28-Jul-2022-Shift-2]
One end of a massless spring of spring constant and natural length is fixed while the other end is connected to a small object of mass lying on a frictionless table. The spring remains horizontal on t
An n.p.n transistor with current gain in common emitter configuration is shown in figure. The output voltage of the amplifier will be [28-Jul-2022-Shift-2]
A metal exposed to light of wavelength and and emits photoelectrons with a certain kinetic energy. The maximum kinetic energy of photo-electron doubles when light of wavelength is used. The workfuncti
The electric field at a point associated with a light wave is given by Given : If this light falls on a metal surface having a work function of , the maximum kinetic energy of the photoelectrons will
A man of is running on the road and suddenly jumps into a stationary trolly car of mass . Then, the trolly car starts moving with velocity . The velocity of the running man was _____ , when he jumps i
A cyclotron is working at a frequency of . If the radius of its dees is . The maximum kinetic energy of accelerated proton will be : Take [30-Jun-2022-Shift-1]
Given below are two statements:Statement I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.Statement II : In ac circuit, the average power
A source is connected in the circuit (as shown in figure). The current through the resistance , at resonance in the circuit, will be _____A. [26-Jun-2022-Shift-1]
Two point charges and of magnitude and respectively are placed at a distance apart. The electric field at the middle point between the charges is . The distance ' ' between the point charges and is :
A parallel plate capacitor with width , length and separation between the plates of is connected to a battery of . A dielectric slab of dielectric constant 5 having length , width and thickness is ins
A small square loop of wire of side is placed inside a large square loop of wire . Both loops are coplanar and their centres coincide at point as shown in figure. The mutual inductance of the system i
Two parallel, long wires are kept apart in vacuum, each carrying current of in the same direction. If the force of attraction per meter of each wire is , then the value of is approximately : [28-Jun-2
In the circuit, the logical value of or when potential at or is and the logical value of or when potential at or is . [25-Jul-2022-Shift-1] The truth table of the given circuit will be :
Three identical charged balls each of charge are suspended from a common point by silk threads of each (as shown in figure). They form an equilateral triangle of side .The ratio of net force on a char
In a potentiometer arrangement, a cell of emf gives a balance point at length of wire. This cell is now replaced by another cell of emf . The difference in balancing length of potentiometer wire in ab
In series RLC resonator, if the self inductance and capacitance become double, the new resonant frequency and new quality factor will be :( original resonant frequency, original quality factor) [30-Ju
Given below are two statements. Statement I : Electric potential is constant within and at the surface of each conductor. Statement II : Electric field just outside a charged conductor is perpendicula
Motion of a particle in -y plane is described by a set of following equations and . The path of the particle will be : [28-Jun-2022-Shift-1]
A coil is placed in a time varying magnetic field. If the number of turns in the coil were to be halved and the radius of wire doubled, the electrical power dissipated due to the current induced in th
The area of cross section of the rope used to lift a load by a crane is . The maximum lifting capacity of the crane is 10 metric tons. To increase the lifting capacity of the crane to 25 metric tons,
A set of 20 tuning forks is arranged in a series of increasing frequencies. If each fork gives 4 beats with respect to the preceding fork and the frequency of the last fork is twice the frequency of t
The variation of applied potential and current flowing through a given wire is shown in figure. The length of wire is . The diameter of wire is measured as . The resistivity of the given wire is measu
A ball is projected vertically upward with an initial velocity of at s. At , another ball is projected vertically upward with same velocity. At _______ , second ball will meet the first ball . [26-Jun
Resistance of the wire is measured as and at and respectively. Temperature co-efficient of resistance of the material of the wire is : [28-Jun-2022-Shift-2]
The equivalent capacitance between points and in below shown figure will be _______ [25-Jun-2022-Shift-1]
A pulley of radius is rotated about its axis by a force applied tangentially (while is measured in seconds). If moment of inertia of the pulley about its axis of rotation is , the number of rotations
The vertical component of the earth's magnetic field is at any place where the angle of dip is . The earth's resultant magnetic field at that place will be (Given ) [29-Jul-2022-Shift-2]
The magnetic moment of an electron (e) revolving in an orbit around nucleus with an orbital angular momentum is given by : [25-Jul-2022-Shift-1]
A copper block of mass is heated to a temperature of and is placed on a large ice block. What is the maximum amount of ice that can melt? [Specific heat of copper : and latent heat of fusion of water
What percentage of kinetic energy of a moving particle is transferred to a stationary particle when it strikes the stationary particle of 5 times its mass?(Assume the collision to be head-on elastic c
A water drop of diameter is broken into 64 equal droplets. The surface tension of water is . In this process the gain in surface energy will be : [28-Jun-2022-Shift-1]
A capacitor of capacitance is charged to a potential of using a battery. The battery is then removed and the charged capacitor is connected to an uncharged capacitor of capacitance as shown in figure.
In an experiment to find acceleration due to gravity (g) using simple pendulum, time period of is measured from time of 100 oscillation with a watch of resolution. If measured value of length is known
At a certain temperature, the degrees of freedom per molecule for gas is 8 . The gas performs of work when it expands under constant pressure. The amount of heat absorbed by the gas will be ________ J
Given below are two statements :Statement I : Susceptibilities of paramagnetic and ferromagnetic substances increase with decrease in temperature.Statement II : Diamagnetism is a result of orbital mot
A wire of length carrying a current of is placed parallel to a long wire of length . The wire carries a current of . The distance between two wires is and currents flow in the same direction. The forc
A of iron nail is hit by a hammer striking at a velocity of . What will be the rise in the temperature of the nail if one fourth of energy of the hammer goes into heating the nail?[Specific heat capac
An observer is riding on a bicycle and moving towards a hill at . He hears a sound from a source at some distance behind him directly as well as after its reflection from the hill. If the original fre
The three charges and are placed at the corners and of a square of side 'a' as shown in figure. The magnitude of electric field (E) at the corner of the square, is : [28-Jun-2022-Shift-1]
A Carnot engine takes of heat from a reservoir at and gives heat to a sink at . The work done by the engine is [24-Jun-2022-Shift-2]
The charge on capacitor of capacitance in the figure given below is : [26-Jun-2022-Shift-2]
A parallel plate capacitor is made up of stair like structure with a plate area of each stair and that is connected with a wire of length , as shown in the figure. The capacitance of the arrangement i
The space inside a straight current carrying solenoid is filled with a magnetic material having magnetic susceptibility equal to . What is fractional increase in the magnetic field inside solenoid wit
If the length of a wire is made double and radius is halved of its respective values. Then, the Young's modulus of the material of the wire will: [29-Jul-2022-Shift-1]
A capacitor of capacitance is charged completely using a dc supply of . It is now connected to an inductor of inductance to form an LC circuit. The maximum current in LC circuit will be ________ A. [2
A sample of an ideal gas is taken through the cyclic process as shown in figure. It absorbs, of heat during the part , no heat during and rejects of heat during . A work of is done on the gas during t
An object ' OOO ' is placed at a distance of in front of a concave mirror of radius of curvature as shown in the figure. The object starts moving towards the mirror at a speed . The position of the im
A gas has degrees of freedom. The ratio of specific heat of gas at constant volume to the specific heat of gas at constant pressure will be : [26-Jul-2022-Shift-2]
The kinetic energy of emitted electron is when the light incident on the metal has wavelength . To double the kinetic energy, the incident light must have wavelength: [29-Jul-2022-Shift-1]
An particle and a carbon 12 atom has same kinetic energy . The ratio of their de-Broglie wavelengths is : [27-Jun-2022-Shift-1]
A particle executes simple harmonic motion. Its amplitude is and time period is . The time it will take to travel from its position of maximum displacement to the point corresponding to half of its am
A wire of length , stretched between rigid supports, has it's and harmonics at 400 and , respectively. If tension in the string is , it's linear mass density is _________ . [27-Jul-2022-Shift-2]
If the projection of on is zero. Then, the value of will be _______. [28-Jul-2022-Shift-1]
The root mean square speed of smoke particles of mass in their Brownian motion in air at NTP is approximately. [Given ] [29-Jul-2022-Shift-2]
A water drop of radius falls in a situation where the effect of buoyant force is negligible. Co-efficient of viscosity of air is and its density is negligible as compared to that of water . Terminal v
A telegraph line of length has a capacity of and it carries an alternating current at cycle per second. If minimum impedance is required, then the value of the inductance that needs to be introduced i
The susceptibility of a paramagnetic material is 99 . The permeability of the material in Wb/A-m, is :[Permeability of free space ] [27-Jun-2022-Shift-1]
Two radioactive materials and have decay constants and respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of to that of will be "e" after a time . T
A ball is spun with angular acceleration where is in second and is in rads . At , the ball has angular velocity of 10 rads and angular position of 4 rad. The most appropriate expression for the angula
A metal surface is illuminated by a radiation of wavelength . The ejected photo-electron enters a constant magnetic field of making an angle of with the magnetic field. If it starts revolving in a cir
The oscillating magnetic field in a plane electromagnetic wave is given by . The amplitude of electric field will be : [26-Jul-2022-Shift-2]
In the given figure, the block of mass is dropped from the point ' '. The expression for kinetic energy of block when it reaches point ' ' is [29-Jun-2022-Shift-2]
An object of mass is taken to a height from the surface of earth which is equal to three times the radius of earth. The gain in potential energy of the object will be [If, and radius of earth [29-Jul-
The percentage decrease in the weight of a rocket, when taken to a height of above the surface of earth will, be : ( Radius of earth ) [26-Jul-2022-Shift-1]
A transverse wave is represented by . The value of wavelength (in ) for which the wave velocity becomes equal to the maximum particle velocity, will be : [26-Jul-2022-Shift-2]
A stone of mass , tied to a string is being whirled in a vertical circle with a uniform speed. The tension in the string is [24-Jun-2022-Shift-2]
The dimensions of will be : (if : permeability of free space and : magnetic field) [28-Jul-2022-Shift-1]
A spherically symmetric charge distribution is considered with charge density varying as Where, is the distance from the centre 0 (as shown in figure). The electric field at point will be: [29-Jul-202
Two capacitors having capacitance and respectively are connected as shown in figure. Initially, capacitor is charged to a potential difference volt by a battery. The battery is then removed and the ch
To increase the resonant frequency in series LCR circuit, [25-Jul-2022-Shift-1]
Two planets and of equal mass are having their period of revolutions and such that . These planets are revolving in the circular orbits of radii and respectively. Which out of the following would be t
The magnetic field at the center of current carrying circular loop is . The magnetic field at a distance of times radius of the given circular loop from the center on its axis is . The value of will b
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.Assertion A : If we move from poles to equator, the direction of acceleration due to gravity of ea
The current in a coil of self inductance is increasing according to . The amount of energy spent during the period when current changes from 0 to is ______J. [25-Jun-2022-Shift-1]
A steam engine intakes of steam at per minute and cools it down to . If latent heat of vaporization of steam is , then the heat rejected by the steam engine per minute is _____ (Given : specific heat
A potentiometer wire of length is connected in series with a resistance and a standard cell of emf . A constant current flows through potentiometer wire. The length of the null point for cell of emf i
The terminal velocity of the spherical rain drop depends on the radius of the spherical rain drop as : [25-Jun-2022-Shift-1]
Choose the correct answer from the options given below : List - I List -II (A) AC generator (I) Detects the presence of current in the circuit (B) Galvanometer (II) Converts mechanical energy into ele
An electrical bulb rated , is connected in series with another bulb rated . If the voltage across combination is , the power consumed by the bulb will be about _______ W. [28-Jul-2022-Shift-2]
A monoatomic gas at pressure and volume is suddenly compressed to one eighth of its original volume. The final pressure at constant entropy will be : [26-Jul-2022-Shift-1]
Let is the efficiency of an engine at and while is the efficiency at and The ratio will be: [25-Jul-2022-Shift-2]
A boy ties a stone of mass to the end of a long string and whirls it around in a horizontal plane. The string can withstand the maximum tension of . If the maximum speed with which the stone can revol
A system of two blocks of masses and is placed on a smooth table as shown in figure. The coefficient of static friction between two blocks is . The maximum horizontal force that can be applied to the
Given below are two statements : One is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) : Time period of oscillation of a liquid drop depends on surface tension (S), if de
At time a particle starts travelling from a height in a plane keeping coordinate constant. At any instant of time it's position along the and directions are defined as and respectively. At acceleratio
A composite parallel plate capacitor is made up of two different dielectric materials with different thickness and as shown in figure. The two different dielectric materials are separated by a conduct
Velocity (v) and acceleration (a) in two systems of units 1 and 2 are related as and respectively. Here and are constants. The relations for distance and time in two systems respectively are: [28-Jun-
The magnetic field at the centre of a circular coil of radius , due to current I flowing through it, is . The magnetic field at a point along the axis at a distance from the centre is : [24-Jun-2022-S
In a series circuit and power factor of the circuit is . When capacitor with capacitance such that is put in series, the power factor becomes . The ratio is: [26-Jul-2022-Shift-1]
Two billiard balls of mass each moving in opposite directions with collide and rebound with the same speed. If the time duration of contact is , then what is the force exerted on the ball due to each
A ball is released from rest from point of a smooth semi-spherical vessel as shown in figure. The ratio of the centripetal force and normal reaction on the ball at point is while angular position of p
A spherical soap bubble of radius is formed inside another spherical soap bubble of radius 6 . If the internal pressure of the smaller bubble of radius in the above system is equal to the internal pre
In a vernier callipers, each on the main scale is divided into 20 equal parts. If tenth vernier scale division coincides with nineth main scale division. Then the value of vernier constant will be ___
Arrange the four graphs in descending order of total work done; where and are the work done corresponding to figure and respectively. [26-Jun-2022-Shift-2]
In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the plane of slits. If the screen is moved by towards the slits, the change in fring
Two travelling waves of equal amplitudes and equal frequencies move in opposite directions along a string. They interfere to produce a stationary wave whose equation is given by The amplitude of the p
In the figure, a very large plane sheet of positive charge is shown. and are two points at distance I and from the charge distribution. If is the surface charge density, then the magnitude of electric
The dimension of mutual inductance is : [26-Jun-2022-Shift-2]
A car is moving with speed of and after applying the break it will move before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling m dis
A uniform metal chain of mass and length 'L' passes over a massless and frictionless pulley. It is released from rest with a part of its length 'l' is hanging on one side and rest of its length ' ' is
A metallic conductor of length rotates in a vertical plane parallel to east-west direction about one of its end with angular velocity . If the horizontal component of earth's magnetic field is , then
When a ball is dropped into a lake from a height above the water level, it hits the water with a velocity and then sinks to the bottom with the constant velocity v. It reaches the bottom of the lake a
The soft-iron is a suitable material for making an electromagnet. This is because soft-iron has [24-Jun-2022-Shift-2]
Sun light falls normally on a surface of area and exerts an average force of within a time period of 20 minutes. Considering a case of complete absorption, the energy flux of incident light is [28-Jul
A parallel beam of light of wavelength and intensity is incident on a surface perpendicular to the beam. The number of photons crossing area perpendicular to the beam in one second is : [26-Jul-2022-S
The current sensitivity of a galvanometer can be increased by : (A) decreasing the number of turns (B) increasing the magnetic freld (C) decreasing the area of the coil (D) decreasing the torsional co
If main scale divisions coincide with vernier scale divisions. The least count of vernier callipers, when each centimetre on the main scale is divided into five equal parts, will be : [30-Jun-2022-Shi
A cell, shunted by a resistance, is balanced across a potentiometer wire of length . The balancing length is when the cell is shunted by resistance. The value of internal resistance of the cell will b
A balloon has mass of in air. The air escapes from the balloon at a uniform rate with velocity . If the balloon shrinks in completely. Then, the average force acting on that balloon will be (in dyne).
Moment of Inertia (M.I.) of four bodies having same mass 'M' and radius ' are as follows: M.I. of solid sphere about its diameter M.I. of solid cylinder about its axis M.I. of solid circular disc abou
Let and . If , then is equal to [27-Jul-2022-Shift-1]
Given below are two statements :Statement I : The electric force changes the speed of the charged particle and hence changes its kinetic energy; whereas the magnetic force does not change the kinetic
A block of metal weighing is resting on a frictionless plane (as shown in figure). It is struck by a jet releasing water at a rate of and at a speed of . Then, the initial acceleration of the block, i
The variation of acceleration due to gravity with distance ( from the center of the earth is correctly represented by :(Given radius of earth) [26-Jun-2022-Shift-1]
Choose the correct option from the following options given below :In the ground state of Rutherford's model electrons are in stable equilibrium. While in Thomson's [24-Jun-2022-Shift-1]
Read the following statements: (A) Volume of the nucleus is directly proportional to the mass number. (B) Volume of the nucleus is independent of mass number. (C) Density of the nucleus is directly pr
A disc with a flat small bottom beaker placed on it at a distance from its center is revolving about an axis passing through the center and perpendicular to its plane with an angular velocity . The co
The radius of gyration of a cylindrical rod about an axis of rotation perpendicular to its length and passing through the center will be ______m. Given, the length of the rod is . [26-Jul-2022-Shift-2
An ice cube of dimensions is placed in an insulation box of wall thickness . The box keeping the ice cube at of temperature is brought to a room of temperature The rate of melting of ice is approximat
A light ray is incident, at an incident angle , on the system of tow plane mirrors and having an inclination angle between them (as shown in figure). After reflecting from mirror it gets reflected bac
The equation of current in a purely inductive circuit is . If the inductance is then the equation for the voltage across the inductor, will be : Let [28-Jul-2022-Shift-1]
If , then the relative error in will be : [25-Jun-2022-Shift-1]
A wire of resistance is drawn out so that its length is increased by twice of its original length. The ratio of new resistance to original resistance is: [28-Jul-2022-Shift-1]
Following statements are given :(A) The average kinetic energy of a gas molecule decreases when the temperature is reduced.(B) The average kinetic energy of a gas molecule increases with increase in p
The half life of a radioactive substance is 5 years. After years a given sample of the radioactive substance gets reduced to of its initial value. The value of is____ [29-Jun-2022-Shift-2]
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.Assertion A : n-p-n transistor permits more current than a p-n-p transistor.Reason R : Electrons h
The electromagnetic waves travel in a medium at a speed of . The relative permeability of the medium is . The relative permittivity of the medium will be : [25-Jun-2022-Shift-2]
A meter bridge setup is shown in the figure. It is used to determine an unknown resistance using a given resistor of . The galvanometer shows null deflection when tapping key is at mark from end . If
Given below are two statements :Statement I : A point charge is brought in an electric field. The value of electric field at a point near to the charge may increase if the charge is positive.Statement
Identify the solar cell characteristics from the following options : [28-Jul-2022-Shift-1]
A body of mass at rest explodes into three pieces, in the ratio of masses . Two smaller pieces fly off perpendicular to each other with velocities of and respectively. The velocity of the third piece
A ball of mass is dropped from the height of . The height, at which the magnitude of velocity becomes equal to the magnitude of acceleration due to gravity, is ____m. Use [26-Jun-2022-Shift-1]
Two cylindrical vessels of equal cross-sectional area contain water upto heights and respectively. The vessels are interconnected so that the water levels in them become equal. The work done by the fo
A beam of monochromatic light is used to excite the electron in from the first orbit to the third orbit. The wavelength of monochromatic light is found to be . The value of is____[Given hc [27-Jun-202
Two identical positive charges each are fixed at a distance of '2a' apart from each other. Another point charge with mass ' ' is placed at midpoint between two fixed charges. For a small displacement
A stone tide to a spring of length is whirled in a vertical circle with the other end of the spring at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u.
A body of mass and another of mass are moving with equal kinetic energy. The ratio of their respective momentum will be : [26-Jul-2022-Shift-2]
An electric bulb is rated as . What will be the peak magnetic field at distance produced by the radiations coming from this bulb? Consider this bulb as a point source with 3.5% efficiency. [24-Jun-202
Two objects of equal masses placed at certain distance from each other attracts each other with a force of . If one-third mass of one object is transferred to the other object, then the new force will
Two masses and are tied together at the two ends of a light inextensible string that passes over a frictionless pulley. When the mass is twice that of , the acceleration of the system is When the mass
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.Assertion A: Two identical balls A and B thrown with same velocity 'u' at two different angles with
Starting with the same initial conditions, an ideal gas expands from volume to in three different ways. The work done by the gas is if the process is purely isothermal, , if the process is purely adia
A car covers distance with first one-third at velocity , second one-third at and last one-third at . If and then the average velocity of the car is ______ [28-Jun-2022-Shift-2]
A source of monochromatic light liberates photon per second with wavelength when operated at 400 . The number of photons emitted per second with wavelength of by the source of monochromatic light oper
Water falls from a high dam at the rate of per hour. Fifty percentage of gravitational potential energy can be converted into electrical energy. Using this hydroelectric energy number of lamps, that c
The bulk modulus of a liquid is . The pressure required to reduce the volume of liquid by is : [24-Jun-2022-Shift-1]
In an experiment to determine the Young's modulus, steel wires of five different lengths , and but of same cross section were taken and curves between extension and load were obtained. The slope (exte
A disc of mass and radius is free to rotate about a horizontal axis passing through its centre and perpendicular to the plane of disc. A body of same mass as that of disc is fixed at the highest point
Two coils of self inductance and are connected in series combination having mutual inductance of the coils as . The equivalent self inductance of the combination will be : [26-Jun-2022-Shift-2]
If and , then the value of is : [26-Jun-2022-Shift-1]
A sample of monoatomic gas is taken at initial pressure of . The volume of the gas is then compressed from 1200 to adiabatically. In this process, the value of workdone on the gas will be : [30-Jun-20
A thin prism of angle and refractive index for yellow light is combined with another prism of angle and . The combination produces no dispersion. The net average deviation produced by the combination
The distance of centre of mass from end of a one dimensional rod having mass density and length (in meter) is . The value of is_____ (where is the distance from end ) [28-Jul-2022-Shift-2]
The length of a seconds pendulum at a height from earth surface will be:(Given Radius of earth and acceleration due to gravity at the surface of earth, ) [25-Jul-2022-Shift-2]
As per the given figure, two blocks each of mass are connected to a spring of spring constant . If both are given velocity in opposite directions, then maximum elongation of the spring is: [26-Jul-202
A particle experiences a variable force in a horizontal plane. Assume distance in meters and force is newton. If the particle moves from point to point in the plane, then Kinetic Energy changes by : [
Two cells of same emf but different internal resistances and are connected in series with a resistance . The value of resistance , for which the potential difference across second cell is zero, is : [
Given below are two statements : one is labelled as Assertion AAA and the other is labelled as Reason R:Assertion A: The photoelectric effect does not takes place, if the energy of the incident radiat
A thermally insulated vessel contains an ideal gas of molecular mass and ratio of specific heats . Vessel is moving with speed and is suddenly brought to rest. Assuming no heat is lost to the surround
The combination of two identical cells, whether connected in series or parallel combination provides the same current through an external resistance of . The value of internal resistance of each cell
A block moving at a speed of compresses a spring through a distance when its speed is halved. The spring constant of the spring will be ____ [25-Jun-2022-Shift-1]
A condenser of capacitance is charged steadily from 0 to . Which of the following graph represents correctly the variation of potential difference across it's plates with respect to thecharge on the c
A solid cylinder length is suspended symmetrically through two massless strings, as shown in the figure. The distance from the initial rest position, the cylinder should be unbinding the strings to ac
Consider the efficiency of carnot's engine is given by , where and are constants. If is temperature, is Boltzmann constant, is angular displacement and has the dimensions of length. Then, choose the i
For a specific wavelength of light coming from a galaxy moving with velocity , the observed wavelength is . The value of is : [26-Jun-2022-Shift-2]
Light travels in two media and with speeds and respectively. The critical angle between them is : [26-Jul-2022-Shift-2]
For using a multimeter to identify diode from electrical components, choose the correct statement out of the following about the diode : [28-Jun-2022-Shift-1]
A direct current of and an alternating current of peak value flow through resistance of and respectively. The ratio of heat produced in the two resistances in same interval of time will be : [27-Jul-2
The frequency of echo will be _______ if the train blowing a whistle of frequency is moving with a velocity of towards a hill from which an echo is heard by the train driver. Velocity of sound in air
The equations of two waves are given by: These waves are simultaneously passing through a string. The amplitude of the resulting wave is: [24-Jun-2022-Shift-1]
A travelling microscope is used to determine the refractive index of a glass slab. If 40 divisions are there in on main scale and 50 Vernier scale divisions are equal to 49 main scale divisions, then
A block is pushed against a vertical wall by applying a horizontal force of . The coefficient of static friction between the block and the wall is . A force is also applied on the block vertically upw
Read the following statements : A. When small temperature difference between a liquid and its surrounding is doubled, the rate of loss of heat of the liquid becomes twice. B. Two bodies and having equ
A long cylindrical volume contains a uniformly distributed charge of density . The radius of cylindrical volume is R. A charge particle (q) revolves around the cylinder in a circular path. The kinetic
In a meter bridge experiment, for measuring unknown resistance ' ', the null point is obtained at a distance from the left side as shown at point . If is , then the value of unknown resistance 'S' wil
The energy band gap of semiconducting material to produce violet (wavelength ) LED is . (Round off to the nearest integer). [25-Jul-2022-Shift-1]
Given below two statements : One is labelled as Assertion (A) and other is labelled as Reason (R).Assertion (A) : Non-polar materials do not have any permanent dipole moment.Reason (R): When a non-pol
The power of a lens (biconvex) is in particular medium. Refractive index of the lens is and radii of curvature are and respectively. The refractive index of surrounding medium: [28-Jul-2022-Shift-2]
A uniform electric field is created between two parallel plates of length as shown in figure, (where mass of electron and charge of electron). An electron enters the field symmetrically between the pl
A juggler throws balls vertically upwards with same initial velocity in air. When the first ball reaches its highest position, he throws the next ball. Assuming the juggler throws balls per second, th
Identify the correct statements from the following descriptions of various properties of electromagnetic waves. (A) In a plane electromagnetic wave electric field and magnetic field must be perpendicu
Two projectiles thrown at and with the horizontal respectively, reach the maximum height in same time. The ratio of their initial velocities is : [26-Jul-2022-Shift-1]
Hydrogen atom from excited state comes to the ground state by emitting a photon of wavelength . The value of principal quantum number ' ' of the excited state will be : (R : Rydberg constant) [25-Jul-
The momentum of an electron revolving in orbit is given by:(Symbols have their usual meanings) [25-Jul-2022-Shift-1]
If is the density and is coefficient of viscosity of fluid which flows with a speed in the pipe of diameter , the correct formula for Reynolds number is : [26-Jun-2022-Shift-2]
If and are the thermal conductivities, and are the lengths and and are the cross sectional areas of steel and copper rods respectively such that . Then, for the arrangement as shown in the figure, the
(A) The drift velocity of electrons decreases with the increase in the temperature of conductor. (B) The drift velocity is inversely proportional to the area of cross-section of given conductor. (C) T
If the potential barrier across a p-n junction is . Then the electric field intensity, in the depletion region having the width of , will be ________ . [29-Jul-2022-Shift-1]
From the top of a tower, a ball is thrown vertically upward which reaches the ground in . A second ball thrown vertically downward from the same position with the same speed reaches the ground in . A
A bag of sand of mass is suspended by a rope. A bullet of travelling with speed gets embedded in it, then loss of kinetic energy will be : [25-Jul-2022-Shift-2]
A monoatomic gas performs a work of where is the heat supplied to it. The molar heat capacity of the gas will be____ during this transformation. Where is the gas constant. [24-Jun-2022-Shift-2]
A long straight wire with a circular cross-section having radius , is carrying a steady current . The current is uniformly distributed across this cross-section. Then the variation of magnetic field d
The maximum error in the measurement of resistance, current and time for which current flows in an electrical circuit are and respectively. The maximum percentage error in the detection of the dissipa
A person is standing in an elevator. In which situation, he experiences weight loss? [26-Jun-2022-Shift-1]
As per the given figure, two plates and of thermal conductivity and are joined together to form a compound plate.The thickness of plates are and respectively and the area of cross-section is for each
A block of ice of mass at temperature is put in of water at . The of ice melts as the temperature of the water reaches . The value of is____[Use specific heat capacity of water , Latent heat of ice ]
An electric cable of copper has just one wire of radius . Its resistance is . If this single copper wire of the cable is replaced by seven identical well insulated copper wires each of radius connecte
A singly ionized magnesium atom ion is accelerated to kinetic energy , and is projected perpendicularly into a magnetic field of the magnitude . The radius of path formed will be _____ . [28-Jun-2022-
A charge particle is moving in a uniform magnetic field . If it has an acceleration of , then the value of will be : [26-Jul-2022-Shift-1]
Two light beams of intensities in the ratio of 9:49:49:4 are allowed to interfere. The ratio of the intensity of maxima and minima will be : [24-Jun-2022-Shift-2]
A vessel contains of nitrogen gas at a temperature of . The amount of heat to be transferred to the gas to double the r.m.s speed of its molecules will be :Take [28-Jul-2022-Shift-2]
A positive charge particle of is thrown in opposite direction to a uniform electric field of strength . If the charge on the particle is and the initial velocity is , how much distance it will travel
A bag is gently dropped on a conveyor belt moving at a speed of . The coefficient of friction between the conveyor belt and bag is . Initially, the bag slips on the belt before it stops due to frictio
The speed of light in media 'A' and 'B' are and respectively. A ray of light enters from the medium BBB to AAA at an incident angle ' '. If the ray suffers total internal reflection, then [29-Jun-2022
What will be the effect on the root mean square velocity of oxygen molecules if the temperature is doubled and oxygen molecule dissociates into atomic oxygen? [28-Jun-2022-Shift-2]
A microscope was initially placed in air (refractive index 1). It is then immersed in oil (refractive index 2). For a light whose wavelength in air is , calculate the change of microscope's resolving
Two ideal diodes are connected in the network as shown in figure. The equivalent resistance between and is ____ . [25-Jul-2022-Shift-2]
The Q-value of a nuclear reaction and kinetic energy of the projectile particle, are related as : [28-Jun-2022-Shift-1]
A galvanometer is shunted by a resistance of . The percentage of the total current which passes through the galvanometer is : [27-Jun-2022-Shift-1]
Assume there are two identical simple pendulum clocks. Clock is placed on the earth and Clock - 2 is placed on a space station located at a height above the earth surface. Clock - 1 and Clock - 2 oper
Four forces are acting at a point in equilibrium as shown in figure. The ratio of force to is where [25-Jul-2022-Shift-1]
As shown in the figure, a potentiometer wire of resistance and length is connected with resistance box (R.B.) and a standard cell of emf 4 V. For a resistance ' ' of resistance box introduced into the
Sixty four conducting drops each of radius and each carrying a charge of are combined to form a bigger drop. The ratio of surface density of bigger drop to the smaller drop will be : [26-Jun-2022-Shif
A radioactive nucleus can decay by two different processes. Half-life for the first process is hours while it is hours for the second process. The effective half-life of the nucleus will be: [26-Jun-2
The velocity of a small ball of mass and density when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is , then the value of viscous force ac
To light, a lamp is connected, in series with a capacitor of capacitance , with source. The value of will be _________. [27-Jul-2022-Shift-1]
Using Young's double slit experiment, a monochromatic light of wavelength produces fringes of fringe width . If another monochromatic light of wavelength is used and the separation between the slits i
Given below are two statements :Statement I: The law of gravitation holds good for any pair of bodies in the universe.Statement II : The weight of any person becomes zero when the person is at the cen
The metallic bob of simple pendulum has the relative density 5 . The time period of this pendulum is . If the metallic bob is immersed in water, then the new time period becomes . The value of will be
The intensity of the light from a bulb incident on a surface is . The amplitude of the magnetic field in this light-wave is _____ (Given : Permittivity of vacuum , speed of light in vacuum ) [29-Jun-2
A source of potential difference is connected to the combination of two identical capacitors as shown in the figure. When key ' ' is closed, the total energy stored across the combination is . Now key
If and . The magnitude of component of vector along vector will be . [26-Jul-2022-Shift-2]
Which of the following statement is correct? [25-Jul-2022-Shift-1]
A hydrogen atom in its first excited state absorbs a photon of energy and excited to a higher energy state where the potential energy of electron is . The value of is____ [30-Jun-2022-Shift-1]
A light whose electric field vectors are completely removed by using a good polaroid, allowed to incident on the surface of the prism at Brewster's angle. Choose the most suitable option for the pheno
A body of mass travels on straight line path with velocity . The net workdone by the force during its displacement from to is : [25-Jul-2022-Shift-1]
The moment of inertia of a uniform thin rod about a perpendicular axis passing through one end is . The same rod is bent into a ring and its moment of inertia about a diameter is . If is , then the va
The graph between and for a thin convex lens in order to determine its focal length is plotted as shown in the figure. The refractive index of lens is 1.5 and its both the surfaces have same radius of
Two identical charged particles each having a mass and charge are placed on a horizontal table with a separation of between them such that they stay in limited equilibrium. If the coefficient of frict
If wattless current flows in the AC circuit, then the circuit is : [25-Jun-2022-Shift-1]
A sample contains each of two substances and with half lives and 8 s respectively. The ratio of their atomic weights is . The ratio of the amounts of and after is . The value of is_____ [24-Jun-2022-S
The rms value of conduction current in a parallel plate capacitor is . The capacity of this capacitor, if it is connected to ac supply with an angular frequency of , will be: [25-Jul-2022-Shift-1]
In Young's double slit experiment performed using a monochromatic light of wavelength , when a glass plate ( ) of thickness is introduced in the path of the one of the interfering beams, the intensity
Let and be a vector such that and . Then the value of is equal to____ [29-Jun-2022-Shift-2]
Two identical thin metal plates has charge and respectively such that . The plates were brought close to each other to form a parallel plate capacitor of capacitance . The potential difference between
A proton, a deutron and an -particle with same kinetic energy enter into a uniform magnetic field at right angle to magnetic field. The ratio of the radii of their respective circular paths is : [24-J
Two metallic blocks and of same area of cross-section are connected to each other (as shown in figure). If the thermal conductivity of is then the thermal conductivity of will be :[Assume steady state
The disintegration rate of a certain radioactive sample at any instant is 4250 disintegrations per minute. 10 minutes later, the rate becomes 2250 disintegrations per minute. The approximate decay con
Three masses and are arranged in a system as shown in figure. All the surfaces are frictionless and strings are inextensible and weightless. The pulleys are also weightless and frictionless. A force i
A block of mass slides over a surface, when a mass of is suspended through an inextensible massless string passing over frictionless pulley as shown below.The coefficient of kinetic friction between t
Time period of a simple pendulum in a stationary lift is ' '. If the lift accelerates with vertically upwards then the time period will be :(Where acceleration due to gravity) [26-Jun-2022-Shift-1]
A body is projected vertically upwards from the surface of earth with a velocity equal to one third of escape velocity. The maximum height attained by the body will be : (Take radius of earth and ) [2
A proton and an alpha particle of the same velocity enter in a uniform magnetic field which is acting perpendicular to their direction of motion. The ratio of the radii of the circular paths described
As per the given circuit, the value of current through the battery will be____ A. [26-Jun-2022-Shift-1]
Resistances are connected in a meter bridge circuit as shown in the figure. The balancing length is . Now an unknown resistance is connected in series with and new balancing length is found to be meas
Two concentric circular loops of radii and are placed in plane as shown in the figure. A current is flowing through them in the direction as shown in figure. The net magnetic moment of this system of
In a series circuit, the inductance, capacitance and resistance are and respectively. They are connected to an source of voltage and frequency of . The approximate value of current in the circuit will
Given below are two statements :Statement I : A uniform wire of resistance is cut into four equal parts. These parts are now connected in parallel. The equivalent resistance of the combination will be
A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in the figure. Its volume is then reduced to the original volume from to by an isobaric proc
An inductor of , a capacitor of and a resistor of are connected in series with a ac source. If the current is in phase with the emf, the frequency of ac source will be ______ [29-Jun-2022-Shift-2]
A bar magnet having a magnetic moment of , is placed along the direction of uniform magnetic field of magnitude T. The work done in rotating the magnet slowly through from the direction of field is :
If and are coplanar vectors and , then is equal to [28-Jun-2022-Shift-1]
Statement I : The average momentum of a molecule in a sample of an ideal gas depends on temperature. Statement II : The rms speed of oxygen molecules in a gas is . If the temperature is doubled and th
A liquid of density flows smoothly through a horizontal pipe that tapers in cross-sectional area from to . The pressure difference between the wide and narrow sections of the pipe is . The rate of flo
In the given circuit, the magnitude of and are twice that of . Given that , the inductance of the coil is . The value of is____ [28-Jun-2022-Shift-2]
Two identical thin biconvex lens of focal length and refractive index 1.5 are in contact with each other. The space between the lenses is filled with a liquid of refractive index 1.25. The focal lengt
A thin circular ring of mass and radius is rotating with a constant angular velocity 2 rads in a horizontal plane about an axis vertical to its plane and passing through the center of the ring. If two
The force required to stretch a wire of cross-section to double its length will be : (Given Yong's modulus of the wire ) [28-Jul-2022-Shift-1]
A radioactive sample decays times its original quantity in 15 minutes. The half-life of the sample is [28-Jul-2022-Shift-2]
A force on an object of mass is . The position of that object at is after starting from rest. The value of will be_____ [25-Jun-2022-Shift-1]
A solid cylinder and a solid sphere, having same mass and radius roll down the same inclined plane from top without slipping. They start from rest. The ratio of velocity of the solid cylinder to that
A hydrogen atom in ground state absorbs of energy. The orbital angular momentum of the electron is increased by : [30-Jun-2022-Shift-1]
A teacher in his physics laboratory allotted an experiment to determine the resistance (G) of a galvanometer. Students took the observations for deflection in the galvanometer. Which of the below is t
Two inclined planes are placed as shown in figure. A block is projected from the Point A of inclined plane along its surface with a velocity just sufficient to carry it to the top Point at a height .
When a car is approaching the observer, the frequency of horn is . After passing the observer, it is . If the observer moves with the car, the frequency will be where __________. [26-Jul-2022-Shift-1]
The distance between Sun and Earth is R. The duration of year if the distance between Sun and Earth becomes 3R will be: [24-Jun-2022-Shift-2]
In an experiment to determine the Young's modulus of wire of a length exactly , the extension in the length of the wire is measured as with an uncertainty of when a load of is applied. The diameter of
Light wave travelling in air along x-direction is given by . Then, the peak value of magnetic field of wave will be (Given ) [25-Jul-2022-Shift-2]
A ball is released from a height . If and be the time required to complete first half and second half of the distance respectively. Then, choose the correct relation between and . [29-Jul-2022-Shift-2
Two bodies of masses and are connected by a light string going over a smooth light pulley on a smooth inclined plane as shown in the figure. The system is at rest. The force exerted by the inclined pl
Which is the correct ascending order of wavelengths? [26-Jun-2022-Shift-2]
An ideal fluid of density , flows smoothly through a bent pipe (as shown in figure) that tapers in cross-sectional area from a to . The pressure difference between the wide and narrow sections of pipe
A Zener diode along with a series resistance is connected across a supply (as shown in the figure). If the maximum Zener current is , then the minimum value of will be _______ [29-Jul-2022-Shift-2]
The approximate height from the surface of earth at which the weight of the body becomes of its weight on the surface of earth is :[Radius of earth and ] [24-Jun-2022-Shift-1]
A plane electromagnetic wave travels in a medium of relative permeability 1.61 and relative permittivity 6.4. If magnitude of magnetic intensity is at a point, what will be the approximate magnitude o
A geyser heats water flowing at a rate of per minute from to . If geyser operates on a gas burner, the rate of combustion of fuel will be _____ [Heat of combustion , Specific heat of water ] [26-Jun-2
Two electric dipoles of dipole moments and are placed in two different uniform electric fields of strengths and respectively. The ratio of maximum torque experienced by the electric dipoles will be .
For an object placed at a distance from a lens, a sharp focused image is observed on a screen placed at a distance from the lens. A glass plate of refractive index and thickness is introduced between
The activity of a radioactive material is curie. Its half life is 5 days. The activity will become curie after : [27-Jul-2022-Shift-2]
As shown in the figure an inductor of inductance is connected to an AC source of emf and frequency . The instantaneous voltage of the source is when the peak value of current is . The value of is ____
In a Vernier Calipers, 10 divisions of Vernier scale is equal to the 9 divisions of main scale. When both jaws of Vernier calipers touch each other, the zero of the Vernier scale is shifted to the lef
A silver wire has a mass , radius and length . The maximum percentage error in the measurement of its density will be : [27-Jun-2022-Shift-1]
A coil of inductance and resistance is connected to a battery of . Determine approximately : (a) The time elapsed before the current acquires half of its steady - state value. (b) The energy stored in
A capacitor of capacitance is charged by source. It is then connected to another uncharged identical capacitor. Electrostatic energy loss in the process is____ nJ. [27-Jun-2022-Shift-1]
The current I in the given circuit will be : [26-Jul-2022-Shift-1]
A series circuit has and and it is connected to ac voltage of amplitude . At frequency lower than resonant frequency, the amplitude of current will be approximately : [27-Jul-2022-Shift-2]
A long copper wire carries a current of . If the cross section of the wire is and the resistivity of copper is , the force experienced by moving electron in the wire is _______ . (charge on electron )
Let be unit vectors. If be a vector such that the angle between and is , and , then is equal to : [24-Jun-2022-Shift-1]
The relation between root mean square speed and most probable sped for the molar mass of oxygen gas molecule at the temperature of will be: [25-Jun-2022-Shift-1]
A particle of mass is moving in a straight line with velocity . The work done by the net force during its displacement from to is : (Take . [29-Jun-2022-Shift-1]
Nearly of the power of a light bulb is converted to visible radiation. The change in average intensities of visible radiation, at a distance of from the bulb to a distance of is . The value of 'a' wil
A body of mass is projected with velocity in vertically upward direction from the surface of the earth into space. It is given that is escape velocity and . If air resistance is considered to be negli
If momentum of a body is increased by , then its kinetic energy increases by [29-Jul-2022-Shift-2]
A person moved from to on a circular path as shown in figure. If the distance travelled by him is , then the magnitude of displacement would be:(Given ) [25-Jul-2022-Shift-1]
Consider a cylindrical tank of radius is filled with water. The top surface of water is at from the bottom of the cylinder. There is a hole on the wall of cylinder at a height of from the bottom. A fo
A particle of mass is moving in a circular path of constant radius such that its centripetal acceleration [28-Jun-2022-Shift-1]
Current measured by the ammeter in the reported circuit when no current flows through resistance, will be_____A. [28-Jun-2022-Shift-1]
A unit scale is to be prepared whose length does not change with temperature and remains , using a bimetallic strip made of brass and iron each of different length. The length of both components would
In the circuit shown below, maximum zener diode current will be___ . [26-Jul-2022-Shift-1]
27 identical drops are charged at each. They combine to form a bigger drop. The potential of the bigger drop will be_____ V. [25-Jun-2022-Shift-2]
A long cylindrical volume contains a uniformly distributed charge of density . The electric field inside the cylindrical volume at a distance from its axis is _______ [27-Jul-2022-Shift-1]
A metre scale is balanced on a knife edge at its centre. When two coins, each of mass are put one on the top of the other at the mark the scale is found to be balanced at mark. The mass of the metre s
At a certain place the angle of dip is and the horizontal component of earth's magnetic field is . The earth's total magnetic field (in G), at that certain place, is : [29-Jun-2022-Shift-1]
A ball of mass hits the wall with its initial speed of and bounces back without changing its initial speed. If the force applied by the wall on the ball during the contact is , calculate the time dura
A screw gauge of pitch is used to measure the diameter of uniform wire of length , the main scale reading is and circular scale reading is 7 . The calculated curved surface area of wire to appropriate
is the capacitance of a parallel plate capacitor with air as a medium between the plates (as shown in Fig. 1). If half space between the plates is filled with a dielectric of relative permittivity (as
Which of the following physical quantities have the same dimensions? [25-Jul-2022-Shift-1]
The equation can be used to find the de-Brogli wavelength of an electron. In this equation stands for: Where mass of electron momentum of electron Kinetic energy of electron Accelerating potential in
Let and be the maximum kinetic energies of photo-electrons emitted when two monochromatic beams of wavelength and , respectively are incident on a metallic surface. If then : [28-Jun-2022-Shift-2]
A closely wounded circular coil of radius produces a magnetic field of at its center. The current through the coil is _______ A. [Given, number of turns in the coil is 100 and ] [29-Jul-2022-Shift-1]
A ball is projected from the ground with a speed at an angle with horizontal so that its range and maximum height are equal, then 'tan will be equal to: [25-Jul-2022-Shift-2]
A magnet hung at with magnetic meridian makes an angle of with the horizontal. The actual value of the angle of dip is - [27-Jul-2022-Shift-1]
The frequencies at which the current amplitude in an LCR series circuit becomes times its maximum value, are and . The value of resistance in the circuit is . The self inductance in the circuit is ___
A transistor is used in common-emitter mode in an amplifier circuit. When a signal of is added to the base-emitter voltage, the base current changes by and the collector current changes by . The load
Two light beams of intensities 4I and 9I interfere on a screen. The phase difference between these beams on the screen at point A is zero and at point B is . The difference of resultant intensities, a
For a constant collector-emitter voltage of , the collector current of a transistor reached to the value of from , whereas base current changed from to value. If transistor is in active state, small s
In a Young's double slit experiment, a laser light of produces an interference pattern with consecutive bright fringes' separation of . Now another light is used to produce an interference pattern wit
A slab of dielectric constant has the same cross-sectional area as the plates of a parallel plate capacitor and thickness , where is the separation of the plates. The capacitance of the capacitor when
If the initial velocity in horizontal direction of a projectile is unit vector and the equation of trajectory is . The component vector of the initial velocity is ________ . Take ) [26-Jul-2022-Shift-
When light of frequency twice the threshold frequency is incident on the metal plate, the maximum velocity of emitted electron is v1v_{1}v1. When the frequency of incident radiation is increased to f
An air bubble of negligible weight having radius rises steadily through a solution of density at speed . The coefficient of viscosity of the solution is given by : [30-Jun-2022-Shift-1]
An object is projected in the air with initial velocity at an angle . The projectile motion is such that the horizontal range , is maximum. Another object is projected in the air with a horizontal ran
The positive feedback is required by an amplifier to act an oscillator. The feedback here means : [26-Jun-2022-Shift-2]
In two different experiments, an object of mass moving with a speed of hits two different walls and comes to rest within (i) 3 second, (ii) 5 seconds, respectively. Choose the correct option out of th
The length of a given cylindrical wire is increased to double of its original length. The percentage increase in the resistance of the wire will be _____ . [25-Jun-2022-Shift-2]
A circuit element when connected to an a.c. supply of peak voltage gives a peak current of which is in phase with the voltage. A second element when connected to the same a.c. supply also gives the sa
In van der Waal equation is pressure, is volume, is universal gas constant and is temperature. The ratio of constants is dimensionally equal to: [29-Jun-2022-Shift-1]
Three identical particles and of mass each are placed in a straight line with . The gravitational force on a fourth particle of the same mass is , when placed at a distance from the particle on the pe
An object is taken to a height above the surface of earth at a distance from the centre of the earth. Where radius of earth, . The percentage decrease in the weight of the object will be [25-Jul-2022-
A proton, a neutron, an electron and an particle have same energy. If and are the de Broglie's wavelengths of proton, neutron, electron and particle respectively, then choose the correct relation from
The interference pattern is obtained with two coherent light sources of intensity ratio 4:1. And the ratio is . Then, the value of x will be equal to : [25-Jun-2022-Shift-2]
The magnetic field of a plane electromagnetic wave is given by : The amplitude of the electric field would be : [26-Jul-2022-Shift-1]
A parallel plate capacitor with plate area and plate separation has a capacitance of . The new capacitance of the system if half of the space between them is filled with a dielectric material of diele
Two balls and are placed at the top of tall tower. Ball is released from the top at . Ball is thrown vertically down with an initial velocity 'u' at . After a certain time, both balls meet above the g
A deuteron and a proton moving with equal kinetic energy enter into a uniform magnetic field at right angle to the field. If and are the radii of their circular paths respectively, then the ratio will
An aluminium wire is stretched to make its length, larger. The percentage change in resistance is : [26-Jun-2022-Shift-1]
Given below are two statements :Statement I : Davisson-Germer experiment establishes the wave nature of electrons.Statement II : If electrons have wave nature, they can interfere and show diffraction.
As shown in the figure, a metallic rod of linear density is lying horizontally on a smooth inclined plane which makes an angle of with the horizontal. The minimum current flowing in the rod required t
is a vector quantity such that non-zero constant. Which of the following expression is true for ? [25-Jun-2022-Shift-1]
In free space, an electromagnetic wave of frequency strikes over the edge of an object of size , where is the wavelength of the wave in free space. The phenomenon, which happens there will be : [26-Ju
A current of flows in the circuit as shown in figure. The value of potential difference between the points and will be: [25-Jul-2022-Shift-2]
Identify the correct Logic Gate for the following output (Y) of two inputs A and B. [27-Jun-2022-Shift-1]
The displacement of simple harmonic oscillator after 3 seconds starting from its mean position is equal to half of its amplitude. The time period of harmonic motion is : [27-Jun-2022-Shift-1]
Which of the following figure represents the variation of with (if radius of a nucleus and its mass number) [25-Jun-2022-Shift-2]
If , then is : [29-Jul-2022-Shift-1]
A vessel contains of hydrogen and of oxygen at standard temperature and pressure. The volume of the vessel in is : [29-Jun-2022-Shift-2]
Two bodies of mass and have position vectors and respectively. The magnitude of the position vector of the centre of mass of this system will be similar to the magnitude of the vector: [29-Jul-2022-Sh
Two satellites and are revolving in circular orbits around a planet with radius and respectively. The ratio of speed of satellite to be speed of satellite in their respective orbits would be where [25
A ball is projected with kinetic energy , at an angle of to the horizontal. The kinetic energy of this ball at the highest point of its flight will become : [29-Jul-2022-Shift-1]
A diatomic gas does of work when it is expanded isobarically. The heat given to the gas in the process is_____ J. [27-Jun-2022-Shift-2]
Identify the logic operation performed by the given circuit: [25-Jun-2022-Shift-2]
An infinitely long hollow conducting cylinder with radius carries a uniform current along its surface.Choose the correct representation of magnetic field as a function of radial distance from the axis
The circuit diagram used to study the characteristic curve of a zener diode is connected to variable power supply ( as shown in figure. A zener diode with maximum potential and maximum power dissipati
Two blocks of masses and are placed on the same straight line with coordinates and respectively. The block of is moved on the same line through a distance of towards the other block. The distance thro
A zener of breakdown voltage and maximum zener current, is subjectd to an input voltage with series resistance . In the given circuit represents the variable load resistance. The ratio of maximum and
For a free body diagram shown in the figure, the four forces are applied in the ' ' and ' ' directions. What additional force must be applied and at what angle with positive -axis so that the net acce
If a wave gets refracted into a denser medium, then which of the following is true? [27-Jun-2022-Shift-2]
A pendulum is suspended by a string of length . The mass of the bob of the pendulum is . The bob is pulled aside until the string is at with vertical as shown in the figure. After releasing the bob, t
If the charge on a capacitor is increased by , the energy stored in it increases by . The original charge on the capacitor is (in C) [24-Jun-2022-Shift-2]
A string of area of cross-section and length is connected with a rigid body of mass . The body is rotated in a vertical circular path of radius . The body acquires a speed of at the bottom of the circ
The velocity of sound in a gas, in which two wavelengths and produce 40 beats in , will be : [28-Jun-2022-Shift-1]
The displacement current of is developed in the space between the plates of parallel plate capacitor when voltage is changing at a rate of . The area of each plate of the capacitor is . The distance b
The diameter of an air bubble which was initially , rises steadily through a solution of density at the rate of . The coefficient of viscosity of the solution is _______ poise (in nearest integer). (t
Two long parallel conductors and are separated by a distance and carrying currents of and respectively. The conductors are placed along -axis in plane. There is a point located between the conductors
A certain amount of gas of volume at temperature and pressure expands isothermally until its volume gets doubled. Later it expands adiabatically until its volume gets redoubled. The final pressure of
One mole of a monoatomic gas is mixed with three moles of a diatomic gas. The molecular specific heat of mixture at constant volume is ; then the value of will be _______ . (Assume that the given diat
The time period of a satellite revolving around earth in a given orbit is 7 hours. If the radius of orbit is increased to three times its previous value, then approximate new time period of the satell
A torque meter is calibrated to reference standards of mass, length and time each with accuracy. After calibration, the measured torque with this torque meter will have net accuracy of : [27-Jul-2022-
An AC source is connected to an inductance of , a capacitance of and a resistance of as shown in figure. The time in which the resistance having a thermal capacity will get heated by is______ s. [28-J
Following statements related to radioactivity are given below :(A) Radioactivity is a random and spontaneous process and is dependent on physical and chemical conditions.(B) The number of un-decayed n
Match List - I with List - II : List I List II (a)UV rays (i)Diagnostic tool in medicine (b)X-rays (ii) Water purification (c)Microwave (iii) Communication, Radar (d)Infrared wave (iv) Improving visib
A particle is moving in a straight line such that its velocity is increasing at per meter. The acceleration of the particle is _____ at a point where its velocity is . [25-Jul-2022-Shift-2]
A charge of is to be divided into two. The distance between the two divided charges is constant. The magnitude of the divided charges so that the force between them is maximum, will be : [27-Jul-2022-
A Carnot engine whose heat sinks at , has an efficiency of . By how many degrees should the temperature of the source be changed to increase the efficiency by of the original efficiency? [24-Jun-2022-
If the acceleration due to gravity experienced by a point mass at a height above the surface of earth is same as that of the acceleration due to gravity at a depth from the earth surface. The value of
A bullet is shot vertically downwards with an initial velocity of from a certain height. Within , the bullet reaches the ground and instantaneously comes to rest due to the perfectly inelastic collisi
A body is projected from the ground at an angle of with the horizontal. Its velocity after 2 s is 20 . The maximum height reached by the body during its motion is____ m. (use ) [24-Jun-2022-Shift-2]
In an experiment with a convex lens, The plot of the image distance ( ) against the object distance ( ) measured from the focus gives a curve . If all the distances are measured in cm. The magnitude o
A coil carrying constant current is connected to a battery of through a switch. Now after switch is opened current becomes zero in s. The average e.m.f. induced in the coil is ______V. [26-Jun-2022-Sh
The photodiode is used to detect the optical signals. These diodes are preferably operated in reverse biased mode because : [25-Jun-2022-Shift-1]
A transformer operating at primary voltage and secondary voltage serves a load of . Assuming the transformer to be ideal with purely resistive load and working on unity power factor, the loads in the
A resistance of is connected to a source of alternating current rated . Find the time taken by the current to change from its maximum value to the rms value : [24-Jun-2022-Shift-1]
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.Assertion A : Product of Pressure (P) and time (t) has the same dimension as that of coefficient o
The position vector of object is and its velocity . The magnitude of its angular momentum is where is ____ [28-Jun-2022-Shift-1]
Two satellites and , having masses in the ratio , are revolving in circular orbits of radii and respectively around the earth. The ratio of total mechanical energy of to is : [27-Jul-2022-Shift-1]
In the given figure, the value of will be V. [25-Jul-2022-Shift-1]
A block of mass starts sliding on a surface with an initial velocity of . The coefficient of friction between the surface and block is . The distance covered by the block before coming to rest is:[use
A Carnot engine has efficiency of . If the temperature of sink is reduced by , its efficiency increase by . The temperature of the source will be: [28-Jul-2022-Shift-1]
For a particle in uniform circular motion, the acceleration at any point on the circular path of radius is (when is measured from the positive -axis and is uniform speed) : [25-Jun-2022-Shift-2]
A body of mass is projected at an angle of with the horizontal. The trajectory of the body is observed to pass through a point . If is the time of flight, then its momentum vector, at time , is [Take
A mass , attached to a horizontal spring, executes SHM with an amplitude . When this mass passes through its mean position, then a smaller mass of is placed over it and both masses move together with
Sodium light of wavelengths and is used to study diffraction at a single slit of aperture . The distance between the slit and the screen is . The separation between the positions of the first maxima o
Which statements are correct about degrees of freedom ? (A) A molecule with degrees of freedom has different ways of storing energy. (B) Each degree of freedom is associated with RT average energy per
An EM wave propagating in xxx-direction has a wavelength of . The electric field vibrating yyy-direction has maximum magnitude of . Choose the correct equations for electric and magnetic fields if the
The height of any point above the surface of earth is equal to diameter of earth. The value of acceleration due to gravity at point will be: (Given acceleration due to gravity at the surface of earth)
Four spheres each of mass m from a square of side d (as shown in figure). A fifth sphere of mass M is situated at the centre of square. The total gravitational potential energy of the system is : [27-
According to kinetic theory of gases,A. The motion of the gas molecules freezes at .B. The mean free path of gas molecules decreases if the density of molecules is increased.C. The mean free path of g
The cut-off voltage of the diodes (shown in figure) in forward bias is . The current through the resister of is_____ . [27-Jun-2022-Shift-2]
An unpolarised light beam of intensity is passed through a polaroid and then through another polaroid which is oriented in such a way that its passing axis makes an angle of relative to that of . The
The circuit diagram of potentiometer used to measure the internal resistance of a cell (E) is shown in figure. The key ' ' is kept closed so as to send constant current through potentiometer wire. Whe
A wire of length carrying current of is bent to form a circle. The magnetic moment of the coil is _______ A . [Given [29-Jul-2022-Shift-1]
If the radius of earth shrinks by while its mass remains same. The acceleration due to gravity on the earth's surface will approximately : [28-Jul-2022-Shift-1]
In an experiment to determine the velocity of sound in air at room temperature using a resonance tube, the first resonance is observed when the air column has a length of for a tuning fork of frequenc
The area of cross-section of a large tank is . It has a narrow opening near the bottom having area of cross-section . A load of is applied on the water at the top in the tank. Neglecting the speed of
A tube of length is filled completely with an incompressible liquid of mass and closed at both ends. The tube is then rotated in horizontal plane about one of its ends with a uniform angular velocity
If a charge is placed at the centre of a closed hemispherical non-conducting surface, the total flux passing through the flat surface would be : [27-Jun-2022-Shift-2]
Light enters from air into a given medium at an angle of with interface of the air-medium surface. After refraction, the light ray is deviated through an angle of from its original direction. The refr
A cylinder of fixed capacity of litres contains helium gas at standard temperature and pressure. The amount of heat needed to raise the temperature of gas in the cylinder by will be :(Given gas consta
A metallic rod of length is placed in North-South direction and is moved at a constant speed of towards East. The horizontal component of the Earth's magnetic field at that place is and the angle of d
A force of acts on a charged particle placed between two plates of a charged capacitor. If one plate of capacitor is removed, then the force acting on that particle will be. [27-Jun-2022-Shift-1]
The half life period of a radioactive substance is 60 days. The time taken for th of its original mass to disintegrate will be : [28-Jul-2022-Shift-1]
A coil of number of turns wound tightly in the form of a spiral with inner and outer radii and respectively. When a current of strength I is passed through the coil, the magnetic field at its centre w
Two long, straight wires, each carrying a current of are kept parallel to each other. If each wire experienced a force of , then separation between the wires is _____ . [26-Jun-2022-Shift-2]
Sound travels in a mixture of two moles of helium and moles of hydrogen. If rms speed of gas molecules in the mixture is times the speed of sound, then the value of will be : [25-Jul-2022-Shift-2]
The potential energy of a particle of mass in motion along the -axis is given by . The time period of the particle for small oscillation is . The value of is ________. [28-Jul-2022-Shift-2]
A ball is thrown vertically upwards with a velocity of from the top of a tower. The ball strikes the ground after . The height from the ground up to which the ball can rise will be . The value of is (
A series LCR circuit with and is connected across a supply. The value of capacitance needed to maximize the average power of the circuit will be _____ . (Take : [30-Jun-2022-Shift-1]
An expression for a dimensionless quantity is given by ; where and are constants, is distance; is Boltzmann constant and is the temperature. Then the dimensions of will be : [26-Jun-2022-Shift-1]
Sand is being dropped from a stationary dropper at a rate of on a conveyor belt moving with a velocity of . The power needed to keep the belt moving with the same velocity will be : [27-Jul-2022-Shift
Two metallic wires of identical dimensions are connected in series. If and are the conductivities of the these wires respectively, the effective conductivity of the combination is : [29-Jul-2022-Shift
The difference of speed of light in the two media A and B ( ) is . If the refractive index of medium B is 1.47, then the ratio of refractive index of medium B to medium A is : (Given : speed of light
Two lighter nuclei combine to form a comparatively heavier nucleus by the relation given below : The binding energies per nucleon for and are and respectively. The energy released in this process is _
300 cal. of heat is given to a heat engine and it rejects 225 cal. If source temperature is , then the temperature of sink will be ______ [29-Jun-2022-Shift-1]
A uniform heavy rod of mass , cross sectional area and length is hanging from a fixed support. Neglecting the lateral contraction, the elongation in the rod due to its own weight is . The value of is
A projectile is launched at an angle ' ' with the horizontal with a velocity . After , its inclination with horizontal is ' '. The value of will be : . [27-Jun-2022-Shift-1]
Eight similar drops of mercury are maintained at each. All these spherical drops combine into a single big drop. The potential energy of bigger drop will be______ E. Where is the potential energy of a
The electric current in a circular coil of 2 turns produces a magnetic induction at its centre. The coil is unwound and in rewound into a circular coil of 5 tuns and the same current produces a magnet
For , where 'a' is a constant. If percentage error in measurement of ' ' and ' ' are and respectively, then the percentage error for 'z' will be ______ [25-Jun-2022-Shift-2]
A girl standing on road holds her umbrella at with the vertical to keep the rain away. If she starts running without umbrella with a speed of , the rain drops hit her head vertically. The speed of rai
The pressure of the gas in a constant volume gas thermometer is of mercury when placed in melting ice at 1 atm. When the bulb is placed in a liquid, the pressure becomes of mercury. Temperature of the
A projectile is projected with velocity of at an angle with the horizontal. After seconds its inclination with horizontal becomes zero. If represents horizontal range of the projectile, the value of w
The motion of a simple pendulum executing S.H.M. is represented by the following equation. , where time is measured in second. The length of pendulum is [29-Jun-2022-Shift-2]
A convex lens of focal length is placed in front of a convex mirror with principal axis coinciding each other. The distance between the lens and mirror is . A point object is placed on principal axis
Two bar magnets oscillate in a horizontal plane in earth's magnetic field with time periods of and respectively. If their moments of inertia are in the ratio of , then the ratio of their magnetic mome
A solid metallic cube having total surface area is uniformly heated. If its temperature is increased by , calculate the increase in volume of the cube. Given [25-Jun-2022-Shift-2]
A triangular shaped wire carrying current is placed in a uniform magnetic field of , as shown in figure. The magnetic force on segment is Given . [28-Jul-2022-Shift-2]
The SI unit of a physical quantity is pascal-second. The dimensional formula of this quantity will be : [27-Jun-2022-Shift-2]
The velocity of upper layer of water in a river is . Shearing stress between horizontal layers of water is . Depth of the river is m. (Co-efficient of viscosity of water is _____ ) [25-Jun-2022-Shift-
What will be the most suitable combination of three resistors so that is equivalent resistance of combination? [24-Jun-2022-Shift-2]
Three identical spheres each of mass are placed at the corners of a right angled triangle with mutually perpendicular sides equal to each. Taking point of intersection of mutually perpendicular sides
The light of two different frequencies whose photons have energies and respectively, illuminate a metallic surface whose work function is successively. The ratio of maximum speeds of emitted electrons
Two capacitors, each having capacitance are connected in series. The space between one of the capacitors is filled with dielectric material of dielectric constant such that the equivalence capacitance
In normal adujstment, for a refracting telescope, the distance between objective and eye piece is . The focal length of the objective, when the angular magnification of the telescope is 2 , will be [2
A water drop of radius is broken into 729 equal droplets. If surface tension of water is 75 dyne/ , then the gain in surface energy upto first decimal place will be : (Given ) [26-Jul-2022-Shift-1]
The elastic behaviour of material for linear stress and linear strain, is shown in the figure. The energy density for a linear strain of is_____ . Assume that material is elastic upto the linear strai
of a certain monoatomic ideal gas undergoes a temperature increase of at constant pressure. The increase in the internal energy of the gas in this process is : (Given ) [26-Jul-2022-Shift-1]
A block of mass slides down on a rough inclined plane with constant velocity. The angle made by the incline plane with horizontal is . The magnitude of the contact force will be : [27-Jul-2022-Shift-2
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Alloys such as constantan and manganin are used in making standard resistance coils.
Two identical metallic spheres and when placed at certain distance in air repel each other with a force of . Another identical uncharged sphere is first placed in contact with and then in contact with
Find the ratio of energies of photons produced due to transition of an electron of hydrogen atom from its (i) second permitted energy level to the first level, and (ii) the highest permitted energy le
A vertical electric field of magnitude just prevents a water droplet of a mass from falling. The value of charge on the droplet will be :(Given : ) [24-Jun-2022-Shift-1]
Capacitance of an isolated conducting sphere of radius becomes times when it is enclosed by a concentric conducting sphere of radius connected to earth. The ratio of their radii is : [25-Jul-2022-Shif
A spherical shell of mass and radius is rolling with angular speed on horizontal plane (as shown in figure). The magnitude of angular momentum of the shell about the origin 0 is . The value of a will
The typical transfer characteristics of a transistor in CE configuration is shown in figure. A load resistor of is connected in the collector branch of the circuit used. The input resistance of the tr
Two parallel plate capacitors of capacity and are connected in parallel combination and charged to a potential difference . The battery is then disconnected and the space between the plates of the cap
In Young's double slit experiment the two slits are distance apart. Interference pattern is observed on a screen at a distance from the slits. The first dark fringe is observed on the screen directly
The two light beams having intensities and interfere to produce a fringe pattern on a screen. The phase difference between the beams is at point and at point . Then the difference between the resultan
A longitudinal wave is represented by . The maximum particle velocity will be four times the wave velocity if the determined value of wavelength is equal to: [29-Jun-2022-Shift-1]
The speed of a transverse wave passing through a string of length and mass is . The area of cross-section of the wire is and its Young's modulus is . The extension of the wire over its natural length
Four identical discs each of mass ' ' and diameter 'a' are arranged in a small plane as shown in figure. If the moment of inertia of the system about is . Then, the value of will be ________. [28-Jul-
A AC source is connected to a lamp and an additional resistance R in series (as shown in figure) to run the lamp at its peak brightness, then the value of (in ohm) will be__ [27-Jun-2022-Shift-1]
A drop of liquid of density is floating half immersed in a liquid of density and surface tension . The radius of drop in will be : [25-Jul-2022-Shift-2]
A ball of mass is dropped from a height on a platform fixed at the top of a vertical spring (as shown in figure). The ball stays on the platform and the platform is depressed by a distance . The sprin
At what temperature a gold ring of diameter be heated so that it can be fitted on a wooden bangle of diameter ? Both the diameters have been measured at room temperature .(Given : coefficient of linea
A capacitor is discharging through a resistor . Consider in time , the energy stored in the capacitor reduces to half of its initial value and in time , the charge stored reduces to one eighth of its
Identify the pair of physical quantities that have same dimensions: [24-Jun-2022-Shift-2]
Time taken by light to travel in two different materials AAA and BBB of refractive indices and of same thickness is and respectively. If s and the ratio of to is 1:2. Then, the thickness of material,
Two metallic plates form a parallel plate capacitor. The distance between the plates is ' '. A metal sheet of thickness and of area equal to area of each plate is introduced between the plates. What w
A circular coil of 1000 turns each with area is rotated about its vertical diameter at the rate of one revolution per second in a uniform horizontal magnetic field of . The maximum voltagegeneration w
A square aluminum (shear modulus is ) slab of side and thickness is subjected to a shearing force (on its narrow face) of . The lower edge is riveted to the floor. The displacement of the upper edge i
A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two halves perpendicular to the principal axis (as shown in figures
Find the ratio of maximum intensity to the minimum intensity in the interference pattern if the widths of the two slits in Young's experiment are in the ratio of 9:169:169:16. (Assuming intensity of l
The activity of a radioactive material is Ci. If the half life of the material is 5 days, after how many days the activity will become ? [29-Jun-2022-Shift-1]
A long ladder weighing leans on a frictionless wall. Its feet rest on the floor away from the wall as shown in the figure. If and are the reaction forces of the floor and the wall, then ratio of will
The total internal energy of two mole monoatomic ideal gas at temperature will be_____J. Given [28-Jun-2022-Shift-1]
A body is performing simple harmonic with an amplitude of . The velocity of the body was tripled by air jet when it is at 5 from its mean position. The new amplitude of vibration is . The value of is_
In a Young's double slit experiment, an angular width of the fringe is on a screen placed at 2 m away for particular wavelength of 450 nm. The angular width of the fringe, when whole system is immerse
If force acts on a particle position vector then, the torque about the origin will be : [25-Jun-2022-Shift-1]
When a particle executes Simple Hormonic Motion, the nature of graph of velocity as a function of displacement will be : [26-Jul-2022-Shift-1]
With reference to the observations in photo-electric effect, identify the correct statements from below (A) The square of maximum velocity of photoelectrons varies linearly with frequency of incident
In an experiment of CE configuration of transistor, the transfer characteristics are observed as given in figure.If the input resistance is and output resistance is , the voltage gain in this experime
Eight copper wire of length and diameter are joined in parallel to form a single composite conductor of resistance . If a single copper wire of length have the same resistance then its diameter will b
In case, Carnot engine operates between temperatures and case, as shown in the figure, a combination of two engines is used. The efficiency of this combination (in case) will be : [27-Jul-2022-Shift-2
As show in the figure, in steady state, the charge stored in the capacitor is _______ . [27-Jul-2022-Shift-2]
The velocity of the bullet becomes one third after it penetrates in a wooden block. Assuming that bullet is facing a constant resistance during its motion in the block. The bullet stops completely aft
The total charge on the system of capacitors and connected in parallel is : (Assume a battery of is connected to the combination) [26-Jul-2022-Shift-1]
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A): In an uniform magnetic field, speed and energy remains the same for a moving ch
A system to 10 balls each of mass are connected via massless and unstretchable string. The system is allowed to slip over the edge of a smooth table as shown in figure. Tension on the string between t
What is the half-life period of a radioactive material if its activity drops to of its initial value in 30 years? [27-Jul-2022-Shift-1]
A curved in a level road has a radius . The maximum speed of a car turning this curved road can be without skidding. If radius of curved road is changed to and the coefficient of friction between the
A block of mass 'Im' (as shown in figure) moving with kinetic energy E compresses a spring through a distance when, its speed is halved. The value of spring constant of used spring will be for _______
In the arrangement shown in figure and are the accelerations of masses and respectively. Which of the following relation is true for this arrangement? [26-Jun-2022-Shift-2]
In a coil of resistance , the magnetic flux due to an external magnetic field varies with time as . The value of total heat produced in the coil, till the flux becomes zero, will be _________ [26-Jul-
Which of the following relations is true for two unit vector and making an angle to each other? [25-Jun-2022-Shift-1]
An object is thrown vertically upwards. At its maximum height, which of the following quantity becomes zero? [26-Jun-2022-Shift-1]
of Nitrogen is enclosed in a vessel at a temperature of . Th amount of heat required to double the speed of its molecules is _____ cal.Take ) [24-Jun-2022-Shift-1]
In the following circuit, the correct relation between output (Y) and inputs A and B will be : [28-Jun-2022-Shift-1]
All resistances in figure are each. The value of current 'I' is . The value of a is______ [28-Jun-2022-Shift-2]
In figure (A), mass '2 m' is fixed on mass ' ' which is attached to two springs of spring constant . In figure (B), mass ' ' is attached to two springs of spring constant ' ' and ' . If mass ' ' in (A
The effective current I in the given circuit at very high frequencies will be A. [26-Jul-2022-Shift-1]
An electron with energy moves at right angle to the earth's magnetic field of 2. The frequency of revolution of the electron will be(Take mass of electron ) [25-Jul-2022-Shift-2]
A wire of length is hanging from a fixed support. The length changes to and when masses and are suspended respectively from its free end. Then the value of is equal to : [29-Jun-2022-Shift-1]
The ratio for the speed of the electron in the orbit of to the speed of the electron in the orbit of hydrogen atom will be : [25-Jun-2022-Shift-1]
The current density in a cylindrical wire of radius is . The current through the outer portion of the wire between radial distances and is____ [27-Jun-2022-Shift-1]
Two vectors and have equal magnitudes. If magnitude of is equal to two times the magnitude of , then the angle between and will be : [29-Jun-2022-Shift-1]
The ratio of specific heats in terms of degree of freedom (f) is given by : [25-Jun-2022-Shift-2]
If momentum , area and time are taken as fundamental quantities, then the dimensional formula for coefficient of viscosity is: [25-Jul-2022-Shift-1]
The torque of a force about the origin is . If the force acts on a particle whose position vector is , then the value of will be [29-Jul-2022-Shift-2]
Let and be two unit vectors such that the angle between them is . If is the angle between the vectors and , then the value of is equal to : [29-Jul-2022-Shift-1]
In the given circuit the input voltage is shown in figure. The cut-in voltage of -n junction diode or is . Which of the following output voltage waveform across the diode is correct? [28-Jun-2022-Shif
Two long current carrying conductors are placed parallel to each other at a distance of between them. The magnitude of magnetic field produced at mid-point between the two conductors due to current fl
Nucleus A is having mass number 220 and its binding energy per nucleon is . It splits in two fragments ' ' and ' ' of mass numbers 105 and 115 . The binding energy of nucleons in ' ' and ' ' is per nu
The total current supplied to the circuit as shown in figure by the battery is _______A. [25-Jun-2022-Shift-1]
A ball of mass is thrown vertically upward. Another ball of mass is thrown at an angle with the vertical. Both the balls stay in air for the same period of time. The ratio of the heights attained by t
Mass numbers of two nuclei are in the ratio of . Their nuclear densities will be in the ratio of [26-Jul-2022-Shift-2]
In an experiment to find out the diameter of wire using screw gauge, the following observations were noted : (A) Screw moves on main scale in one complete rotation (B) Total divisions on circular scal
A parallel beam of light is allowed to fall on a transparent spherical globe of diameter and refractive index . The distance from the centre of the globe at which the beam of light can converge is____
A person starts his journey from centre 'O' of the park and comes back to the same position following path OPQO as shown in the figure. The radius of path taken by the person is and he takes to comple
In the given circuit, the value of current will be _____ . (When ) [24-Jun-2022-Shift-2]
A hanging mass is connected to a four times bigger mass by using a string-pulley arrangement, as shown in the figure. The bigger mass is placed on a horizontal ice-slab and being pulled by force. this
If Electric field intensity of a uniform plane electromagnetic wave is given as . Then magnetic intensity of this wave in will be:[Given : Speed of light in vacuum , Permeability of vacuum ]. [26-Jun-
A potential barrier of exists across a p-n junction. An electron enters the junction from the -side with a speed of . The speed with which electron enters the side will be the value of is____(Given ma
A batsman hits back a ball of mass straight in the direction of the bowler without changing its initial speed of . The impulse imparted to the ball is ____Ns. [26-Jun-2022-Shift-2]
Two projectiles and thrown with speed in the ratio , attain the same height during their motion. If is thrown at an angle of with the horizontal, the angle of projection of with horizontal will be : [
long wire is broken into two unequal parts and . The part of the wire is streched into another wire . Length of is twice the length of and the resistance of is twice that of . Find the ratio of length
A travelling microscope has 20 divisions per on the main scale while its vernier scale has total 50 divisions and 25 vernier scale divisions are equal to 24 main scale divisions, what is the least cou
A small spherical ball of radius and density falls freely under gravity through a distance h before entering a tank of water. If, after entering the water the velocity of ball does not change and it c
A sinusoidal voltage volt is applied to a series circuit in which and . The phase difference between the applied voltage and resultant current will be : [25-Jun-2022-Shift-2]
An employee of a factory moving away from his workplace by a car listens to the siren of the factory. He drives the car at the speed of in the direction of wind which is blowing at speed. Frequency of
A logic gate circuit has two inputs and and output . The voltage waveforms of and are shown below.The logic gate circuit is : [27-Jul-2022-Shift-1]
The refracting angle of a prism is and refractive index of the material of the prism is . Then the angle of minimum deviation will be - [28-Jun-2022-Shift-1]
Let and . If the projection of on the vector is 30 , then is equal to : [26-Jul-2022-Shift-1]
A person can throw a ball upto a maximum range of . How high above the ground he can throw the same ball? [29-Jun-2022-Shift-2]
Two coils require 20 minutes and 60 minutes respectively to produce same amount of heat energy when connected separately to the same source. If they are connected in parallel arrangement to the same s
A mass of is suspended vertically by a rope of length from the roof. A force of is applied at the middle point of rope in horizontal direction. The angle made by upper half of the rope with vertical i
A cyclotron is used to accelerate protons. If the operating magnetic field is and the radius of the cyclotron 'dees' is , the kinetic energy of the accelerated protons in will be : [use ] [27-Jul-2022
Choose the most appropriate answer from the options given below :For a series LCR circuit, I vs curve is shown :(a) To the left of , the circuit is mainly capacitive.(b) To the left of , the circuit i
The Vernier constant of Vernier callipers is and it has zero error of . While measuring diameter of a sphere, the main scale reading is and coinciding vernier division is 5 . The corrected diameter wi
For a perfect gas, two pressures and are shown in figure. The graph shows: [27-Jun-2022-Shift-2]
When a gas filled in a closed vessel is heated by raising the temperature by , its pressure increases by . The initial temperature of the gas is ____ [25-Jun-2022-Shift-2]
and are the magnetic fields at the centre of two coils and respectively each carrying equal current. If coil has 200 turns and radius and coil has 400 turns and radius, the ratio of and is : [26-Jul-2
Two point charges each are placed at a distance apart. A third point charge q is placed at a distance from mid-point on the perpendicular bisector. The value of at which charge q will experience the m
A parallel plate capacitor is formed by two plates each of area separated by . A material of dielectric strength is filled between the plates. If the maximum charge that can be stored on the capacitor
The aperture of the objective is . The resolving power of this telescope, if a light of wavelength is used to see th object will be : [28-Jun-2022-Shift-1]
The current density in a cylindrical wire of radius is . The current through the outer portion of the wire between radial distances and is ; where is____ [27-Jun-2022-Shift-2]
The excess pressure inside a liquid drop is . If the radius of the drop is , the surface tension of liquid is . The value of is____ [30-Jun-2022-Shift-1]
A heat engine operates with the cold reservoir at temperature . The minimum temperature of the hot reservoir, if the heat engine takes heat from the hot reservoir and delivers heat to the cold reservo
In Young's double slit experiment, the fringe width is . If the entire arrangement is placed in water of refractive index , then the fringe width becomes (in mm): [26-Jul-2022-Shift-1]
The I-V characteristics of a p-n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltage of and respectively, is : [26-Jun-2022-Sh
Let and let be a vector such that and . Then the projection of on the vector is: [25-Jul-2022-Shift-2]
A pendulum of length consists of a wooden bob of mass . A bullet of mass is fired towards the stationary bob with a speed . The bullet emerges out of the bob with a speed and the bob just completes th
A potentiometer wire of length and resistance is connected in series with a battery and an external resistance . A cell of emf in secondary circuit is balanced by long potentiometer wire. The value of
In a carnot engine, the temperature of reservoir is and that of sink is . If the work done by the engine when it transfers heat from reservoir to sink is , the quantity of heat absorbed by the engine
A uniform disc with mass and radius is mounted on a fixed horizontal axle as shown in figure. A block with mass hangs from a massless cord that is wrapped around the rim of the disc. During the fall o
A conducting circular loop is placed in plane in presence of magnetic field in SI unit. If the radius of the loop is , the induced emf in the loop, at time, is . The value of is ________. [27-Jul-2022
A flask contains argon and oxygen in the ratio of in mass and the mixture is kept at . The ratio of their average kinetic energy per molecule respectively will be : [26-Jun-2022-Shift-2]
The escape velocity of a body on a planet ' ' is . The escape velocity of the body on another planet ' ', whose density is four times and radius is half of the planet ' ', is : [29-Jun-2022-Shift-1]
Two massless springs with spring constants and , carry and masses at their free ends. These two masses oscillate vertically such that their maximum velocities are equal. Then, the ratio of their respe
In the given figure of meter bridge experiment, the balancing length corresponding to null deflection of the galvanometer is . The balancing length, if the radius of the wire is doubled, will be _____
A light wave travelling linearly in a medium of dielectric constant 4, incidents on the horizontal interface separating medium with air. The angle of incidence for which the total intensity of inciden
A compass needle of oscillation magnetometer oscillates 20 times per minute at a place of . The number of oscillations per minute become 10 at another place of dip. The ratio of the total magnetic fie
In the following nuclear reaction, Mass number of is 182 and atomic number is 74 . Mass number and atomic number of respectively will be____ [29-Jun-2022-Shift-2]
An object of mass is thrown vertically upwards from the ground. The air resistance produces a constant retarding force of throughout the motion. The ratio of time of ascent to the time of descent will
A parallel plate capacitor filled with a medium of dielectric constant 10 , is connected across a battery and is charged. The dielectric slab is replaced by another slab of dielectric constant 15 . Th
The efficiency of a Carnot's engine, working between steam point and ice point, will be : [26-Jun-2022-Shift-1]
An expression of energy density is given by , where are constants, is displacement, is Boltzmann constant and is the temperature. The dimensions of will be : [27-Jul-2022-Shift-2]
Same gas is filled in two vessels of the same volume at the same temperature. If the ratio of the number of molecules is , then A. The r.m.s. velocity of gas molecules in two vessels will be the same.
The time period of oscillation of a simple pendulum of length suspended from the roof of a vehicle, which moves without friction down an inclined plane of inclination , is given by : [29-Jul-2022-Shif
Potential energy as a function of is given by , where is the interatomic distance, A and are positive constants. The equilibrium distance between the two atoms will be : [24-Jun-2022-Shift-2]
An electron with speed and a photon with speed have the same de-Broglie wavelength. If the kinetic energy and momentum of electron are and and that of photon are and respectively. Which of the followi
A wire of length and radius is clamped rigidly at one end. When the other end of the wire is pulled by a force , its length increases by . Another wire of the same material of length and radius is pul
A block of mass M placed inside a box descends vertically with acceleration 'a'. The block exerts a force equal to one-fourth of its weight on the floor of the box. The value of 'a' will be [29-Jun-20
The pressure and density of diatomic gas changes suddenly to and respectively during an adiabatic process. The temperature of the gas increases and becomes _______ times of its initial temperature. (g
A block of mass is kept stationary on a smooth inclined plane by applying a minimum horizontal force as shown in figure.The value of [25-Jun-2022-Shift-2]
An observer moves towards a stationary source of sound with a velocity equal to one-fifth of the velocity of sound. The percentage change in the frequency will be: [27-Jun-2022-Shift-1]
Identify the pair of physical quantities which have different dimensions: [24-Jun-2022-Shift-1]
In the hydrogen spectrum, be the wavelength of first transition line of Lyman series. The wavelength difference will be "a ' between the wavelength of transition line of Paschen series and that of tra
Three point charges of magnitude and are located at the vertices of a right angled triangle whose sides are and and point is the right angle corner. Charge at point experiences _________ of electrosta
A transistor is used in an amplifier circuit in common emitter mode. If the base current changes by , it brings a change of in collector current. If the load resistance is and input resistance is , th
The equivalent resistance between points and in the given network is : [26-Jun-2022-Shift-2]
In a potentiometer arrangement, a cell gives a balancing point at length of wire. This cell is now replaced by another cell of unknown emf. If the ratio of the emf's of two cells respectively is , the
At , truck, starting from rest, moves in the positive -direction at uniform acceleration of . At , a ball is released from the top of the truck. The ball strikes the ground in after the release. The v
The equation of a particle executing simple harmonic motion is given by . At , the speed of particle will be(Given : ) [27-Jun-2022-Shift-2]
A monkey of mass climbs on a rope which can withstand the tension (T) of . If monkey initially climbs down with an acceleration of and then climbs up with an acceleration of . Choose the correct optio
A block of mass moving on a horizontal surface with speed of enters a rough surface ranging from to . The retarding force in this range of rough surface is related to distance by where . The speed of
The current flowing through an ac circuit is given by How long will the current take to reach the peak value starting from zero? [27-Jun-2022-Shift-1]
Two buses and start from a point at the same time and move in a straight line and their positions are represented by and At what time, both the buses have same velocity? [25-Jun-2022-Shift-2]
How many alpha and beta particles are emitted when Uranium decays to lead ? [26-Jun-2022-Shift-1]
The volume charge density of a sphere of radius is . The number of lines of force per unit surface area coming out from the surface of the sphere is .[Given : Permittivity of vacuum ) [25-Jul-2022-Shi
When you walk through a metal detector carrying a metal object in your pocket, it raises an alarm. This phenomenon works on : [25-Jul-2022-Shift-2]
The electric field in an electromagnetic wave is given by . Find the intensity of the wave if it is propagating along xxx-axis in the free space.(Given : ) [25-Jun-2022-Shift-1]
A ball is thrown up vertically with a certain velocity so that, it reaches a maximum height . Find the ratio of the times in which it is at height while going up and coming down respectively. [29-Jul-
As per given figures, two springs of spring constants and are connected to mass . If the period of oscillation in figure (a) is , then the period of oscillation in figure (b) will be . The value of is
Two sources of equal emfs are connected in series. This combination is connected to an external resistance . The internal resistances of the two sources are and . If the potential difference across th
A NCC parade is going at a uniform speed of under a mango tree on which a monkey is sitting at a height of . At any particular instant, the monkey drops a mango. A cadet will receive the mango whose d
Four particles with a mass of and are situated at the corners of a square with side (as shown in the figure). The moment of inertia of the system, about an axis passing through the point and perpendic
The elongation of a wire on the surface of the earth is . The same wire of same dimensions is elongated by on another planet. The acceleration due to gravity on the planet will be ___ . (Take accelera
A resistor develops of thermal energy in , when a current of is passed through it. If the current increases to , the energy developed in is_____J. [25-Jun-2022-Shift-1]
The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength is . If the threshold frequency is , where is____ (nearest integer).(Given, speed light = , Planck's
Two waves executing simple harmonic motions travelling in the same direction with same amplitude and frequency are superimposed. The resultant amplitude is equal to the times of amplitude of individua
A uniform chain of length is placed on a table such that a part of its length is hanging over the edge of the table. The system is at rest. The co-efficient of static friction between the chain and th
A hydrogen atom in its ground state absorbs of energy. The angular momentum of electron of the hydrogen atom will increase by the value of :(Given, Planck's constant ). [27-Jun-2022-Shift-1]
Given below are two statements :Statement I : When amount of an ideal gas undergoes adiabatic change from state to state , then work done is , where and universal gas constant.Statement II : In the ab
A rolling wheel of is on an inclined plane at position and connected to a mass of through a string of fixed length and pulley as shown in figure. Consider PR as friction free surface. The velocity of
A pressure-pump has a horizontal tube of cross sectional area for the outflow of water at a speed of . The force exerted on the vertical wall just in front of the tube which stops water horizontally f
Given below are two statements :Statement I : In hydrogen atom, the frequency of radiation emitted when an electron jumps from lower energy orbit (E to higher energy orbit , is given as Statement II :
Two uniformly charged spherical conductors and of radii and are separated by a distance of . If the spheres are connected by a conducting wire, then in equilibrium condition, the ratio of the magnitud
An alternating emf is applied to a circuit containing an inductance of . If an a.c. ammeter is connected in the circuit, its reading will be : [29-Jul-2022-Shift-1]
Let be a vector which makes equal angles with the coordinate axes OX, OY and OZ. Also, let the projection of on the vector be 7. Let be a vector obtained by rotating with . If and -axis are coplanar,