Q. If longitudinal strain for a wire is 0.03 and its Poisson’s ratio is 0.5, then its lateral strain is
A) 0.003
B) 0.0075
C) 0.015
D) 0.4
Explanation
(c) $\sigma = \frac{lateral\ strain}{longitudinal\ strain} \Rightarrow 0.5 = \frac{lateral\ strain}{0.03}$
$\Rightarrow$ Lateral strain$= 0.5 \times 0.03 = 0.015$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.