Heat and Thermal ExpansionHard
Question
If the adsorption coefficient and reflection of a surface of a body are 0.6 restively then : -
Options
A.Emissive power will be 0.2
B.Transmission power will be 0.2
C.Body will be totally transparent
D.Body will be totally opaque.
Solution
For a grey body
σ + r + t = 1if = 0.4, r = 0.6
then t = 1 - 0.4 - 0.6 = 0
The body is opaquer
σ + r + t = 1if = 0.4, r = 0.6
then t = 1 - 0.4 - 0.6 = 0
The body is opaquer
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