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The ratio of modulus of rigidity to modulus of elasticity for a Poisson's ratio of 0.25 would be

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0.5

0.4

0.3

1.0

answer is B.

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Detailed Solution

Concept- Utilise the relationship between the modulus of elasticity, the modulus of rigidity, and the Poisson's ratio in this question.
which is given as

Use this idea to arrive at the answer to the question.
Formula used

Using the relationship between Y, K, the poisson's ratio, and the stiffness modulus

.
Hence, the correct answer is option 2,

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