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A perfect black body is one which

This question belongs to Mechanical Engineering Heat And Mass Transfer
Heat and Mass Transfer
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A perfect black body is one which

Answer & Solution
Correct Answer: Option D
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 . However, if heated to a high temperature, a blackbody will begin to glow with thermal radiation
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