Let 220 W/m2 of radiant energy is absorbed by a convex surface, 90 W/m – McqOptions

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1.	Let 220 W/m² of radiant energy is absorbed by a convex surface, 90 W/m² is reflected and 40 W/m² is transmitted through it. What is the value of absorptivity?
A.	0.72
B.	0.62
C.	0.52
D.	0.42
Answer» C. 0.52

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