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MHT CET 2021 (23 Sep, Shift 1) · Thermal Radiation: Black Body, Stefan & Wien

Thermal Radiation: Black Body, Stefan & Wien question from MHT CET 2021 (23 Sep, Shift 1)

Q87MHT CET 2021 · 23 SEP · SHIFT 1Easy

Thermal Radiation: Black Body, Stefan & Wien

The temperature of a black body is increased by $50\%$ , then the percentage increase in the rate of radiation by the body is approximated

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Answer: (c)

$E \propto T^4$ ; $\dfrac{E'}{E} = (1.5)^4 \approx 5.06$
Increase $\approx 406\% \approx 400\%$
So the answer is (c) 400%.

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