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For a given material, Young's modulus is...

For a given material, Young's modulus is 2.4 times that of rigidity modulus. Its Poisson's ratio is

A

2.4

B

1.2

C

0.4

D

0.2

Text Solution

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The correct Answer is:
D
`Y=2 eta(1+ sigma)`
`implies 2.4 eta=2 eta(1+ sigma)`
`implies 1.2=1+ sigma `
`implies sigma =0.2`
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