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The increase in length of a wire on streching is $0.0 25 % .$ If its poisson ration is $0. 4,$ then the percentage decrease in the diameter is

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detailed solution

Correct option is A

σ=lateral strainlongitudanal strain=-ΔDDΔllΔDD=σΔllΔDD×100=σΔll×100=0.4×0.025100×100=0.01

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The increase in length of a wire on streching is 0.025%. If its poisson ration is 0.4, then the percentage decrease in the diameter is

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Ready to Test Your Skills?

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The increase in length of a wire on streching is $0.0 25 % .$ If its poisson ration is $0. 4,$ then the percentage decrease in the diameter is