One calorie of heat energy is equivalent to approximately . . . . . . . . joules of mechanical energy.

Heat stored in water vapour is

A. specific heat

B. latent heat

C. absolute heat

D. relative heat

The statement that 'heat cannot flow by itself from a body at a lower temperature to a body at a higher temperature', is known as

A. Zeroth Law of Thermodynamics

B. First Law of Thermodynamics

C. Second Law of Thermodynamics

D. Third Law of Thermodynamics

A Kelvin thermometer and a Fahrenheit thermometer both give the same reading for a certain sample. What would be the corresponding reading in a Celsius thermometer?

A. 574

B. 301

C. 273

D. 232

A black body can absorb radiations of

A. lower wavelengths only

B. intermediate wavelengths only

C. higher wavelengths only

D. all wavelengths