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qUESTIONS

If ‘E’ is the kinetic energy per mole of an ideal gas and T is the absolute temperature, then the universal gas constant is given as

For monoatomic gas work done at constant pressure is ‘W’. For the same rise in temperature of the gas, the heat supplied at constant volume is

Which of the following law states that “good absorbers of heat are good emitters

A hot metallic sphere of radius r radiates heat. It’s rate of cooling is

black body at 227°C radiates heat at the rate of 7 cal/cm² s. At a temperature of 727°C, the rate of heat radiated in the same units will be

Two identical metal balls at temperature 200°C and 400°C kept in air at 27°C. The ratio of net heat loss by these bodies is

The temperature at which a black body of unit area loses its energy at the rate of 1 joule/second is

About a black body radiation, which one of the following is the WRONG statement

At constant temperature, the pressure of gas is decreased by 20%. The percentage change in volume

The translational kinetic energy of the molecule of a gas at absolute temperature (T) can be doubled by

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