First slide

Elastic Modulie

Question

A rod is elongated by applying a force along its length such that Bulk strain of the rod is zero. Poisson's ratio of the rod is

Moderate

A

0.5
B

0.1
C

0.7
D

$- 0.5$

Solution

$\frac{ΔV}{V} = 0, σ = - \frac{Δr / r}{Δℓ / ℓ} = \frac{1}{2}$

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