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For a given material, the Young's modulu...

For a given material, the Young's modulus is 2.4 times its modulus of rigidity. What is the value of its Poisson's ratio ?

A

`0.5`

B

`0.4`

C

`0.2`

D

`0.3`

Text Solution

Verified by Experts

The correct Answer is:
C
We use the relation `Y = 2 eta (1+ sigma)`
`:. 2.4 eta = 2 eta (1+ sigma)`
`:. 1+ sigma = (2.4)/(2) = 1.2 :. Sigma = 1.2 - 1 = 0.2`
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