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A black body is defined as a perfect absorber of radiations. It may or may not be a perfect emitter of radiations.

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A black body is defined as a perfect absorber of radiations. It may or may not be a perfect emitter of radiations.

(a) True

(b) False

This question was addressed to me during an online exam.

I want to ask this question from Black Body Radiation topic in division Quantum Physics of Engineering Physics I

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Correct option is (b) False

To explain: A black body is defined as the one which is a perfect absorber as well as a perfect emitter of radiations. Such a body would absorb all the radiations falling on it and would emit all of them when heated.

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