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JEE Main Physics question

PhysicsMechanical Properties of SolidsJEE Main

A wire is suspended vertically from a rigid support. When loaded with a body in air, the wire extends by 6.2 mm and when the body is immersed completely in water, the extension is reduced to 4.1 mm. The relative density of the material of the body is

Answer: 2.95

Solution

Extension tension. In water, tension , so

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Question ID VK-155219