NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Steel and copper wires of same length are stretched by the same weight one after the other. Young’s modulus of steel and copper are

2 \times {10^{11}}N/{m^2}\,and\,1.2 \times {10^{11}}N/{m^2}

. The ratio of increase in length

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Correct option: B

\frac{3}{5}

Option B is correct. The ratio of increase in length is inversely proportional to the Young's modulus, given the same force, length, and area.

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