A) \[1.7\times {{10}^{10}}\]J
B) \[1.1\times {{10}^{12}}\]J
C) \[2.8\times {{10}^{8}}\]J
D) \[4.6\times {{10}^{6}}\]J
Correct Answer: A
Solution :
[a] According to Stefan?s law \[E=\sigma \,{{T}^{4}}\] Heat radiated per unit area in 1 hour (3600s) is \[=5.7\times {{10}^{-8}}\times {{(3000)}^{4}}\times 3600=1.7\times {{10}^{10}}\,J\]You need to login to perform this action.
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