what is meant by a black body in chemistry
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A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. A black body in thermal equilibrium (that is, at a constant temperature) emits electromagnetic radiation called black-body radiation.
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A black body is a metal sphere coated with platinum - black and a hole on its surface.
A perfect black - body emits and absorbs all radiations .
However a perfect black - body does not exist .
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