Question

difine the following absorptive power​

Answer 1

Answer:

Absorptive power of a surface is defined as the rate of absorption of radiation per unit area of the surface compared with that of a surface coated with lamp black (blackbody) under similar conditions.

The absorptive power of a body or a surface is defined as the ratio of the energy absorbed in a given time to the radiant energy incident on it at the same instant of time.

The absorptive power of a black body is 1 because it absorbs radiant energy of all wavelengths incident on it.

Answer 2

Answer:

Absorptive power is defined at a given temperature and wave length is defined as ratio of amount of heat energy absorbed to the heat energy incident on wave length range

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