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Elasticity

The ratio of ...

Question

The ratio of young's modulus to modulus of rigidity for a material having Poisson's ratio 0.2 is -

A

2.4

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B

0.416

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C

0.357

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D

2.8

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Solution

The correct option is A 2.4
$E = 2 G (1 + μ)$

Where ,

$μ = P o i s s o n r a t i o = 0.2 (g i v e n)$

$\Rightarrow \frac{E}{G} = 2 (1 + 0.2) = 2.4$

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