A) \[2\pi SY\alpha \Delta T\]
B) \[SY\alpha \,\Delta T\]
C) \[\pi SY\alpha \,\Delta T\]
D) \[2SY\alpha \,\Delta T\]
Correct Answer: D
Solution :
\[L\Rightarrow S\] \[\Delta L=L\propto \Delta T\] \[\frac{F}{A}=\frac{\Delta L}{L}Y\] \[F=\alpha \,\Delta T\,\,YS\] So, \[T=2\,F\] \[T=2\alpha \,\Delta t\,YS\]You need to login to perform this action.
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