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MHT CET 2026 (19 Apr, Shift 1) · Thermal Radiation: Black Body, Stefan & Wien

Thermal Radiation: Black Body, Stefan & Wien question from MHT CET 2026 (19 Apr, Shift 1)

Q3MHT CET 2026 · 19 APR · SHIFT 1Easy

Thermal Radiation: Black Body, Stefan & Wien

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

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Answer: (c)

$r = \dfrac{17}{170} = 0.1$ , $a = 0.7$ , so $t = 1 - 0.7 - 0.1 = 0.2$
Transmitted $= 0.2\times170 = 34$ J
So the answer is (c) 34.0 J.

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