Question

A black body is a perfect absorber and perfect emitter of radiation.

• A. True
• B. False

Answer 1

The correct option is A

True

What is a Black body??

A blackbody is a hypothetical, ideal body, which is a perfect absorber and perfect emitter of radiation.

$\Rightarrow$ In other words - 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).