A metal bar of length L , area of cross-section A , Young's modulus Y , and coefficient of linear ex

Question

A metal bar of length L , area of cross-section A , Young's modulus Y , and coefficient of linear expansion $\alpha$ is clamped between two stout pillars. Now it is heated through $t^{0} \mathrm{C}$. The force exerted by the bar is\

Professor PC Thomas Classes · Answer

See detailed solution for explanation.