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Questions  

If Poisson’s ration (μ)  of a substance is 0.4, The relation between Bulk modulus of elasticity (k) and modulus of rigidity η  is ______

a
14η=3k
b
7η=3k
c
9η=7k
d
η=2k

detailed solution

Correct option is A

Y=2η1+μ  =  3k1−2μ∴      2η1+25  =  3k1−2 × 25⇒    14 η =  3k

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