If radiant energy EB emitted by the black surface strikes the non-blac – McqOptions

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1.	If radiant energy EB emitted by the black surface strikes the non-black surface. If non-black surface has absorptivity α, it will absorb how much radiations?
A.	α EB
B.	2 α EB
C.	3 α EB
D.	4 α EB
Answer» B. 2 α EB

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