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A wire of length L and radius r is clamped at one end. If its other end is pulled by a force F, its length increases by l . If the radius of the wire and the applied force both are reduced to half of their original values keeping original length constant, the increase in length will become:

1. 3 times
2. 2 3 times
3. 2 times
4. 4 times

Correct answer: 2 times

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