While the total emissivity of a perfect black body is unity, the same

1.	While the total emissivity of a perfect black body is unity, the same for a real body is
A.	0
B.	1
C.	> 1
D.	between 0 and 1
Answer» E.

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While the total emissivity of a perfect black body is unity, the same for a real body is

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