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A wire elongates by 1.0 mm when a load W...

A wire elongates by 1.0 mm when a load W is hanged from it. If this wire goes over a pulley and two weights W each are hung at the two ends the elongation of the wire will be

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The correct Answer is:
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The tension is the wire will be same in both the cases. Hence elongation will be same i.e., 1mm.
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