Question:
For athermanous substances, coefficient of transmission is
For athermanous substances, coefficient of transmission is
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Athermanous substances absorb or reflect heat but do not transmit it.
Updated On: Feb 18, 2026
- less than one but greater than zero
- zero
- equal to one
- greater than one
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The Correct Option is B
Solution and Explanation
Step 1: Meaning of athermanous substances.
Athermanous substances do not transmit thermal radiation.
Step 2: Transmission coefficient.
Since no radiation passes through, the transmitted energy is zero.
Step 3: Conclusion.
Hence, the coefficient of transmission is zero.
Athermanous substances do not transmit thermal radiation.
Step 2: Transmission coefficient.
Since no radiation passes through, the transmitted energy is zero.
Step 3: Conclusion.
Hence, the coefficient of transmission is zero.
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