Question

what is black body please please please guys fast
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Answer 1

A black body or blackbody is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. The name "black body" is given because it absorbs radiation in all frequencies, not because it only absorbs: a black body can emit black-body radiation.

Answer 2

a hypothetical perfect absorber and radiator energy with no reflecting power