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NEET 1993 (AIPMT) · Thermal Radiation: Black Body, Stefan & Wien

Thermal Radiation: Black Body, Stefan & Wien question from NEET 1993 (AIPMT)

Q110NEET 1993 · AIPMTEasy

Thermal Radiation: Black Body, Stefan & Wien

If the temperature of the sun is doubled, the rate of energy received on earth will be increased by a factor of

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Answer: (d)

Power emitted by the sun $\propto T^4$ ; energy received on earth is a fixed fraction of it.
$\dfrac{E'}{E} = 2^4 = 16$
So the answer is (d) 16.

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