A) \[\frac{4\pi {{r}^{2}}\sigma \,{{t}^{4}}}{{{R}^{2}}}\]
B) \[\frac{{{r}^{2}}\,\sigma \,{{(t+273)}^{4}}}{4\pi {{R}^{2}}}\]
C) \[\frac{16\,{{\pi }^{2}}\,{{r}^{2}}\,\sigma {{t}^{4}}}{{{R}^{2}}}\]
D) \[\frac{{{r}^{2}}\,\sigma \,{{(t+273)}^{4}}}{{{R}^{2}}}\] where \[\sigma \] is the Stefan's constant.
Correct Answer: D
Solution :
From Stefan's law, the rate at which energy is radiated by sun at its surface is \[P=\sigma \times 4\pi {{r}^{2}}{{T}^{4}}\]You need to login to perform this action.
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