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A wire of length L and radius r is rigidly fixed at one end. On stretching the other end of the wire with a force F, the increase in its length is l. If another wire of same material but of length 2L and radius 2r is stretched with a force of 2F, the increase in its length will be [NCERT 1980; AIIMS 1980; MP PET 1989, 92; MP PET/PMT 1988; MP PMT 1996, 2002; UPSEAT 2002]A) l B) 2l C) \frac{l}{2} D) \frac{l}{4} |
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Answer» HELLO Friend..... The ANSWER of U r question is.. Option.c thank you.. |
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