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MHT CET Medical202623 April 2026Morning ShiftPhysicsThermal Properties of MatterActual

If the radiant heat absorbed by the body is 75 % of the incident heat and if the coefficient of the reflection is 0.15 , then the coefficient of transmission is

Options

  1. A0.15
  2. B0.13
  3. C0.10
  4. D0.09

Correct answer

C. 0.10

Step-by-step solution

Let the total incident heat be Q . The radiant heat absorbed by the body is 75 % of the incident heat. Therefore, the coefficient of absorption is a = 0.75 . The coefficient of reflection is given as r = 0.15 . According to the conservation of energy, the sum of the coefficients of absorption, reflection, and transmission is equal to 1 . a + r + t = 1 Substituting the given values: 0.75 + 0.15 + t = 1 0.90 + t = 1 t = 1 - 0.90 = 0.10 The coefficient of transmission is 0.10 . Answer: 0.10

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