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Grade Upto college level Engineering Entrance Exams

Coefficient of transmission and coefficient of reflection for a given body are 0.22 and 0.74 respectively. Then, at a given temperature, the coefficient of emission for the body is (a) 0.4 (b) 0.04 (c) 0.96 (d) 0.22

Profile image of sumit kumar
12 Years agoGrade Upto college level
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2 Answers

Profile image of Saurabh Koranglekar
6 Years ago
Dear student

The answer is option b

Regards
Profile image of Vikas TU
6 Years ago
For a grey body
a+r+t=1 if α=0.4,r=0.6
then t=1−0.4−0.6=0
The body is opaque
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