Simple Stress and Strain MCQ with answer and solution

Concept

Range of Poisson's ratio

Formula

0 ≤ ν ≤ 0.5

Step-by-step solution

1. K = E/3(1−2ν) must be positive, so ν < 0.5. 2. For ordinary materials ν > 0. 3. Limits: 0 and 0.5.

Explanation

Poisson's ratio of an isotropic material lies between 0 (no lateral strain) and 0.5 (incompressible).

Why the other options are wrong

A value of 1 would give a negative bulk modulus, and 0.25 is only a typical value.

Shortcut

ν: 0 to 0.5.

Common mistake

Taking 1 as the limit.