A) \[4\]
B) \[16\]
C) \[32\]
D) \[64\]
Correct Answer: D
Solution :
As, \[P\propto A{{T}^{4}}\] and \[A\propto {{r}^{2}}\] \[P\propto {{r}^{2}}{{T}^{4}}\] Now, \[T'=2T,\] \[r'=2r\] Hence, \[\frac{P'}{P}=\frac{{{(2r)}^{2}}{{(2T)}^{4}}}{{{r}^{2}}{{T}^{4}}}=64\] \[\Rightarrow \] \[P'=64P\]You need to login to perform this action.
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