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JEE Main Physics question

PhysicsMechanical Properties of SolidsJEE Main

A 1 m long steel wire of cross-sectional area is extended by 1 mm. If , then the work done is

Answer: (A)

Solution

\dfrac{YAΔ l}{L}\dfrac{2×10^{11}×10^{-6}×10^{-3}}$

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Question ID VK-154932