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MHT CET 2019 (3 May, Shift 1) · Shear Modulus & Poisson's Ratio

Shear Modulus & Poisson's Ratio question from MHT CET 2019 (3 May, Shift 1)

Q8MHT CET 2019 · 3 MAY · SHIFT 1Easy

Shear Modulus & Poisson's Ratio

For homogeneous isotropic material, which one of the following cannot be the value of Poisson's ratio?

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Answer: (d)

Theoretical range for an isotropic material: $-1 < \sigma < 0.5$ (from $K > 0$ and $\eta > 0$ ).
$0.1$ lies inside; $-1$ and $0.5$ are the limiting values.
$0.8$ is outside the range, so it cannot be Poisson's ratio.
So the answer is (d).

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