A) \[90\,W{{m}^{-2}}\]
B) \[120\,W{{m}^{-2}}\]
C) \[65\,W{{m}^{-2}}\]
D) \[200\,\,W{{m}^{-2}}\]
Correct Answer: A
Solution :
\[\frac{\Delta Q}{\Delta t}=\frac{kA}{\ell }({{T}_{2}}-{{T}_{1}})\] \[\frac{1}{A}\left( \frac{\Delta Q}{\Delta t} \right)=\frac{k}{\ell }({{T}_{2}}-{{T}_{1}}).\]You need to login to perform this action.
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