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A wire elonga...

Question

A wire elongates by $x m m$ when a load $W$ is hanged from it. If this wire goes over a pulley and two weight $W$ each are hung at the two ends, then elongation in the wire will be

A

Z e r o

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B

x m m

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C

2 x m m

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D

\frac{x}{2} m m

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Solution

The correct option is B $x m m$
Still stress is same
So elongation $= x m m$

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