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If the temperature of the sun were to increase from T to 2T and its radius from R to 2R, then

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If the temperature of the sun were to increase from T to 2T and its radius from R to 2R, then the ratio of the radiant energy received on earth to what it was previously, will be

(a) 4

(b) 16

(c) 32

(d) 64

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1 Answer

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Best answer

Correct Option (d) 64

Explanation: 

From Stefan's law, the energy radiated by sun is

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