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If the temperature of the sun were to in...

If the temperature of the sun were to increase form 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`

Text Solution

Verified by Experts

The correct Answer is:
D

The surface area is increased by a factor of 4 The temperature is increased by a factor of 2 So the radiant energy is increased by a factor of 64 [Using Stefan's law] .
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