A) 1500 K
B) 2000 K
C) 2500 K
D) 3000 K
Correct Answer: C
Solution :
According to Stefen?s law \[E=\sigma \,\varepsilon A{{T}^{4}}\] Þ\[\frac{1.58\times {{10}^{5}}\times 4.2}{60\times 60}=5.6\times {{10}^{-8}}\times {{10}^{-4}}\times 0.8\times {{T}^{4}}\] \[T\approx 2500\,K\]You need to login to perform this action.
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