JEE Main Physics question

PhysicsMechanical Properties of SolidsJEE Main

Two identical wires are suspended from the same rigid support, one of copper and the other of iron. The Young's modulus of iron is thrice that of copper. The weights to be added to the copper and iron wires so that their lower ends are on the same level must be in the ratio of

Answer: (A)

Solution

Since both wires are identical (same ), equal elongation requires .

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Question ID VK-154902