Question

what is black body ? And what's its significance ?​

Answer 1

Explanation:

Black body is an idael body which can absorb all incident wavelength of corresponding wave without reflecting and transmit in it.

Answer 2

Explanation:

A blackbody refers to an opaque object that emits thermal radiation. A perfect blackbody is one that absorbs all incoming light and does not reflect any. At room temperature, such an object would appear to be perfectly black (hence the term blackbody).