Engineering - Heat Transfer - Discussion

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Q.

40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is                         
A. 0.45 B. 0.55
C. 0.4 D. 0.75

Answer: Option A
Explaination:

 


No Explanation




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