Coefficient of surfacial expansion of a solid is $2 imes 10^{-5} /{ }^{\circ} \mathrm{C}$. Then th

Question

Coefficient of surfacial expansion of a solid is $2 	imes 10^{-5} /{ }^{\circ} \mathrm{C}$. Then the coefficient of linear expansion is

Professor PC Thomas Classes · Answer

Linear expansion $\alpha = \frac{\beta}{2} = 1 	imes 10^{-5} / ^\circ	ext{C}$.