Discussion :: Heat Transfer,Refrigeration and Air Conditioning
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Which of the following statement is correct?
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A.
A grey body is one which absorbs all radiations incident on it.
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B.
At thermal equilibrium, the emissivity and absorptivity are same.
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C.
The energy absorbed by a body to the total energy falling on it, is called emissivity.
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D.
A perfect body is one which is black in colour.
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Answer : Option B
Explanation :
No answer description available for this question.
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