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CBSE Class 11-science Answered

what is actually black body . i have not understood the video
Asked by Ashok Rana | 21 Jul, 2013, 12:37: PM
Expert Answer

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). However, if heated to a high temperature, a blackbody will begin to glow with thermal radiation. Thus, blackbody is a perfect absorber and a perfect emitter of radiations.

Answered by | 22 Jul, 2013, 10:35: AM
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