A) \[{{10}^{3}}N\]
B) \[{{10}^{4}}N\]
C) \[{{10}^{5}}N\]
D) \[{{10}^{9}}N\]
E) \[{{10}^{2}}N\]
Correct Answer: B
Solution :
\[F=YA\frac{\Delta L}{L}=\frac{YA}{L}\times \alpha L\Delta \theta =YA\,\alpha \Delta \theta \] \[\therefore \]\[F={{10}^{11}}\times {{10}^{-4}}\times {{10}^{-5}}\times 100\] \[={{10}^{4}}N\]You need to login to perform this action.
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