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MHT CET 2025 (19 Apr, Shift 2) · Thermal Radiation: Black Body, Stefan & Wien

Thermal Radiation: Black Body, Stefan & Wien question from MHT CET 2025 (19 Apr, Shift 2)

Q41MHT CET 2025 · 19 APR · SHIFT 2Easy

Thermal Radiation: Black Body, Stefan & Wien

The co-efficient of absorption and the coefficient of reflection of a thin uniform plate are 0.77 and 0.17 respectively. If 250 kcal of heat is incident on the surface of the plate, the quantity of heat transmitted is

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Answer: (c)

  1. t=1−a−r=1−0.77−0.17=0.06t = 1 - a - r = 1 - 0.77 - 0.17 = 0.06
  2. Transmitted =0.06×250=15= 0.06\times250 = 15 kcal
  3. So the answer is (c) 15 kcal.
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