Previous Year Questions
24 questions — organised by subject with solutions and explanations.
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An experiment is performed to find the refractive index of glass using a travelling microscope. In this experiment distances are measured by
While measuring the speed of sound by performing a resonance column experiment, a student gets the first resonance condition at a column length of during winter. Repeating the same experiment during s
Two full turns of the circular scale of a screw gauge cover a distance of on its main scale. The total number of divisions on the circular scale is 50 . Further, it is found that the screw gauge has a
An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume and contains ideal gas at pressure and temperature . The other chamber has volume an
Consider a uniform square plate of side and mass . The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is
A body of mass is moving along the -axis with a speed of . The magnitude of its momentum is recorded as
Consider a block of conducting material of resistivity shown in the figure. Current enters at and leaves from . We apply superposition principle to find voltage ' developed between and . The calculati
This question contains Statement - 1 and Statement - 2. of the four choices given after the statements, choose the one that best describes the two statements. Statement - 1:For a mass kept at the cent
A wave travelling along the -axis is described by the equation . If the wavelength and the time period of the wave are and , respectively, then and in appropriate units are
A body is at rest at . At , it starts moving in the positive -direction with a constant acceleration. At the same instant another body passes through moving in the positive direction with a constant s
A battery with internal resistance and a battery with internal resistance are connected to a resistor as shown in the figure.The current in the resistor is
A thin spherical shell of radius has charge spread uniformly over its surface. Which of the following graphs most closely represents the electric field produced by the shell in the range , where is th
Shown in the figure below is a meter-bridge set up with null deflection in the galvanometer.The value of the unknown resister R is
A jar is filled with two non-mixing liquids 1 and 2 having densities and respectively. A solid ball, made of a material of density , is dropped in the jar. It comes to equilibrium in the position show
The speed of sound in oxygen at a certain temperature is . The speed of sound in helium at the same temperature will be (assume both gases to be ideal)
A block of mass is moving with a speed of on a smooth surface. It strike another mass of and then they move together as a simple body. The energy loss during the collision is
A planet in a density solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is , the escape velocity from the surface o
A thin rod of length ' is lying along the -axis with its ends at and . Its linear density (mass/length) varies with as , where can be zero or any positive number. If the position of the center of mass
A parallel plate capacitor with air between the plates has capacitance of . The separation between its plates is . The space between the plates has dielectric constant and thickness while the other on
A capillary tube (A) is dipped in water. Another identical tube (B) is dipped in a soap-water solution. Which of the following shows the relative nature of the liquid columns in the two tubes?
The dimension of magnetic field in and (coulomb) is given as
A spherical solid ball of volume is made of a material of density . It is falling through a liquid of density . Assume that the liquid applies a viscous force on the ball that is proportional to the s
An athlete in the Olympic games covers a distance of in . His kinetic energy can be estimated to be in the range
Consider a block of conducting material of resistivity shown in the figure. Current enters at and leaves from . We apply superposition principle to find voltage developed between and . The calculation