Question

Spectral distribution of black body radiation

Answer 1

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Answer 2

Black body radiation

An ideal body which emits and absorbs all frequencies of radiations is called a black body and the radiation emitted by such a body is called black body radiation. The frequency distribution of radiationemitted from a black body depends only on its temperature. At a given temperature, intensity of radiation emitted increases with decrease of wavelength, reaches a maximum value at a given wavelength and then starts decreasing. The phenomenon of black body radiation was first explained by Max Planck by his Quantum theory.