Question: Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be
[A].0.35
0.45
0.55
0.85
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.