A) \[300{}^\circ C\]
B) \[400{}^\circ C\]
C) \[100{}^\circ C\]
D) \[200{}^\circ C\]
Correct Answer: D
Solution :
\[E=20\,\theta -{{\theta }^{2}}/20\] When \[\theta ={{\theta }_{n}}.dE/d\theta =0\] \[\therefore \] \[dE/d\theta =20-2{{\theta }_{n}}/20=0\] or \[{{\theta }_{n}}=200{{\,}^{o}}C\]You need to login to perform this action.
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