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Mr. Dubey • 100.64K Points
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Q. Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be

  • (A) 0.35
  • (B) 0.45
  • (C) 0.55
  • (D) 0.85
  • Correct Answer - Option(B)
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  • Filed under category Heat Transfer
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