Relation between emissivity e and absorp...

Relation between emissivity e and absorptive power a is (for black body)

`e=a`

`e=1/a`

`e=a^(2)`

`a=e^(2)`

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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 .

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