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JEE Main Physics question

PhysicsMechanical Properties of SolidsJEE Main

A wire () has length 1 m and cross-sectional area . The work required to increase its length by 2 mm is

Answer: (A)

Solution

\dfrac\dfrac{AY}{L}l)^2\dfrac\dfracExtra open brace or missing close brace{10^{-6}10^{11}$

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Question ID VK-154935