A) 3Q
B) 9Q
C) 27 Q
D) 81 Q
Correct Answer: D
Solution :
According to Stefan's law \[E\propto {{T}^{4}}\] So, \[\frac{{{E}_{2}}}{{{E}_{1}}}={{\left( \frac{{{T}_{2}}}{{{T}_{1}}} \right)}^{4}}\] or \[\frac{{{E}_{2}}}{{{E}_{1}}}={{\left( \frac{3T}{T} \right)}^{4}}\] \[\Rightarrow \] \[{{E}_{2}}=81Q\,\,W\]You need to login to perform this action.
You will be redirected in
3 sec