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JEE Main 2013 Physics question

PhysicsMechanical Properties of SolidsJEE Main 2013

A uniform wire (Young's modulus ) is subjected to longitudinal tensile stress of . If the overall volume change in the wire is 0.02%, the fractional decrease in the radius of the wire is close to:

Answer: (3)

Solution

Longitudinal strain . $ = - 2Missing argument for \frac\frac{Δ

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Question ID VK-103991