If radiant energy E B emitted by the black surface strikes the non-black surface. If non-black surface has absorptivity , it will absorb how much radiations?

If radiant energy E B emitted by the black surface strikes the non-bla

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