A stress $4 imes 10^8 \mathrm{~N} / \mathrm{m}^2$ is applied on a wire. Strain developed is 0.01 .

Question

A stress $4 	imes 10^8 \mathrm{~N} / \mathrm{m}^2$ is applied on a wire. Strain developed is 0.01 . Then Youngs modulus of the material of the wire is

Professor PC Thomas Classes · Answer

Young's modulus $Y = \frac{	ext{Stress}}{	ext{Strain}} = \frac{4 	imes 10^8}{0.01} = 4 	imes 10^{10} \mathrm{N/m^2}$.