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NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Application +4 | -1

Two wires of copper having the length in the ratio 4: 1 and their radii ratio as 1: 8 are stretched by the same force. The ratio of longitudinal strain in the two will be

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Correct option: D

2.667361111

Option D (2.667361111) is correct because longitudinal strain is proportional to length and inversely proportional to the square of the radius when the force is the same.

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