Question

State and prove Kirchoff's law of heat radiation.
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Answer 1

Answer:

Kirchhoff's law of thermal radiation states that the emissive power to the coefficient of absorption is constant for all the substances at a given temperature. We can say that at a given temperature, the emissivity of a substance is equal to the coefficient of absorption. Formula used: Ea=constant =Eb.

Answer 2

Answer:

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Explanation:

but koi ni hota hai....