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Question

Poisson ratio for a material is 0.3 and its bulk modulus is 1.5×1011N/m2. Young's modulus of the material is-

A
2×1011N/m2
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B
1.85×1011N/m2
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C
1.8×1011N/m2
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D
1.4×1011N/m2
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Solution

The correct option is A 1.8×1011N/m2
Given ithat Bulk modulus (β)=1.5×1011 N/m2 Poisson ratio (σ)=0.3 Young modulus (y)=? we know velation between β,σ,y
β=y3(12σ)
y=3β(12σ)

Putting value we get y=3×1.5×1011(10.6)y=1.8×1011 N/m2

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