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

If the temperature of the Sun were to increase from T to 2T and its radius from R to 2R. The ratio of power radiated by it would become

A

64 times

B

16 times

C

32 times

D

4 times

Text Solution

Verified by Experts

The correct Answer is:
A
Power radiated = `AT^(4)`
Therefore, when radius becomes twice and area A becomes 4 times and temperature T becomes 2T, power radiated `= (2)^(4)` times `= 64` times
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