MHT CET 2026 Physics question
When 170 J of energy is incident on a surface of a body, 17 J of energy is reflected by it. If the coefficient of absorption is 0.7, then the amount of energy transmitted will be
Answer: (C)
Solution
The coefficients of reflection, absorption and transmission add up to 1: . Reflection coefficient . Absorption coefficient (given). So the transmission coefficient is . Energy transmitted $= t × 170 = 0.2
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