A) 40.5 J
B) 162 J
C) 13.5 J
D) 135 J
Correct Answer: A
Solution :
According to Stefan's law. \[E\propto {{T}^{4}}\] \[\frac{{{E}_{1}}}{{{E}_{2}}}={{\left[ \frac{{{T}_{1}}}{{{T}_{2}}} \right]}^{4}}\] \[\frac{{{E}_{1}}}{0.5}={{\left[ \frac{273+627}{273+27} \right]}^{4}}\] \[{{E}_{1}}=0.5{{\left( \frac{900}{300} \right)}^{4}}\] \[\Rightarrow \] \[{{E}_{1}}=40.5\,J\]You need to login to perform this action.
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