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Question
An athermanous metal plate has the coefficient of absorption 0.65. Its coefficient of reflection is ______.
Options
0.35
zero
0.45
0.55
MCQ
Fill in the Blanks
Solution
An athermanous metal plate has the coefficient of absorption 0.65. Its coefficient of reflection is 0.35.
Explanation:
For athermanous metal plate there is no transmission
So, 1 = r + a
∴ r = 1 - 0.65 = 0.35
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Absorption, Reflection, and Transmission of Heat Radiation
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