From Kirchoff's law the ratio of emissive power and absorption power of all bodies-

What is emissive power ?

Emissive power and Absorptive power of a body depend upon

Dimensions of emissive power are

Dimensions of emissive power are

At a given temperature the ratio between emissive power and absorptive power is same for all bodies and is equal to the emissive power of black body This statement is called .

At a given temperature the ratio between emissive power and absorptive power is same for all bodies and is equal to the emissive power of black body This statemetn is called .

Distinguish between Emissive power and absorptive power.