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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Assertion: The amount of radiation from sun's surface varies as the fourth power of its absolute temperature.
Reason: The sun is black body.
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Correct option: A
If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion
Option A is correct because the Stefan-Boltzmann law states that the energy radiated by a black body is proportional to the fourth power of its absolute temperature, and the sun approximates a black body.

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