HARD
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100
The pressure exerted on the walls of the container by a gas is due to the fact that the gas molecules:
50% studentsanswered this correctly
Important Questions on Physics
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
1. Specific heat capacity is the amount of heat required to raise the temperature of 1 kg of a substance through 1 kelvin.
2. The Sl unit of specific heat capacity is Jkg-1 K-1 and in CGS it is cal g-1 °C-1.
3. Thermal capacity is the amount of heat required to raise the temperature of a given amount of substance through 1 kelvin.
Which of the statements given above are correct?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
EASY
UPSC CAPF AC Paper - I
IMPORTANT
EASY
UPSC CAPF AC Paper - I
IMPORTANT
HARD
UPSC CAPF AC Paper - I
IMPORTANT
1. Glaciers always melt at the bottom first.
2. Calorimeters are generally made of coppers.
3. The unit of latent heat is cal/g.
4. If a substance contracts on heating, its co-efficient of linear expansion is negative.
Which of the statements given above are correct?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
HARD
UPSC CAPF AC Paper - I
IMPORTANT
Consider the following statements:
1. A heat engine is a device which converts heat energy into mechanical energy.
2. A heat engine essentially consists of a source of heat at a higher temperature, working substance and sink of heat at a lower temperature.
3. In a diesel engine, a mixture of fuel vapours and air acts as the working substance.
4. The efficiency of a petrol engine is greater than the diesel engine.
Which of the statements given above is/are correct?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
