Previous Year Questions
6 questions — organised by subject with solutions and explanations.
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A mixture of hydrogen and oxygen has volume , temperature , pressure and mass . The ratio of number of moles of hydrogen to number of moles of oxy in the mixture will be:[Take gas constant [27-Jun-202
A 60 HP electric motor lifts an elevator havinga maximum total load capacity of 2000 kg. If the frictional force on the elevator is 4000 N,the speed of the elevator at full load is close to:(1 HP = 74
The distance of the Sun from earth is and its angular diameter is (2000) s when observed from the earth. The diameter of the Sun will be : [27-Jun-2022-Shift-2]
Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance is used to measure the potential difference across resistor, the reading of the voltmeter will b
A water heater of power is used to heat water. The specific heat capacity of water is . The efficiency of heater is . Time required to heat of water from to is _______ s.(Assume that the specific heat
If the maximum load carried by an elevator is ( Passengers - elevator), which is moving up with a uniform speed of and the frictional force acting on it is , then the maximum power used by the motor i