If radiant energy EB emitted by the black surface strikes the non-black surface.

Question

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?

Options:

A . α EB

B . 2 α EB

C . 3 α EB

D . 4 α EB

Answer: Option A
Answer: (a).α EB

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