NEET PhysicsClass 11Poisson's ratio and elastic energyHardSingle correct

A wire 2.0 m long and 1.0 mm in diameter is stretched by 1.0 mm. The Poisson's ratio of its material is 0.30. The decrease in its diameter is

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A wire 2.0 m long and 1.0 mm in diameter is stretched by 1.0 mm. The Poisson's ratio of its material is 0.30. The decrease in its diameter is

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