Question

Absorptive power of a body is defined as the ratio of

• A. the amount of heat energy incident on it to the amount of heat energy absorbed in a wavelength range.
• B. the amount of heat energy absorbed to the amount of heat energy incident on it in a wavelength range.
• C. the amount of heat energy absorbed to the amount of heat energy radiated by it in a wavelength range.
• D. none of the above

Answer 1

The correct option is B the amount of heat energy absorbed to the amount of heat energy incident on it in a wavelength range.

Absorptive power of a body is defined at a given temperature and wavelength is defined as the ratio of the amount of heat energy absorbed to the amount of heat energy incident on it in a wavelength range.