Heat TransferMedium
Question
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
Options
A.4
B.16
C.32
D.64
Solution
According to Stefan′s law,
P ∝ AT4 and A ∝ r2
P ∝ r2T4
P ∝ AT4 and A ∝ r2
P ∝ r2T4
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