A) \[5.8\times {{10}^{3}}K\]
B) \[8.5\times {{10}^{3}}K\]
C) \[3.5\times {{10}^{8}}K\]
D) \[5.3\times {{10}^{8}}K\]
Correct Answer: A
Solution :
From Stefan?s law \[E=\sigma {{T}^{4}}\] \[{{T}^{4}}=\frac{E}{\sigma }=\frac{6.3\times {{10}^{7}}}{5.7\times {{10}^{8}}}=1.105\times {{10}^{15}}=0.1105\times {{10}^{16}}\] \[T=0.58\times {{10}^{4}}K=5.8\times {{10}^{3}}K\]
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