Answer to Question #300424 in Atomic and Nuclear Physics for Sophia

Question

A metal rod of length 40.0 cm at 20°C is heated through a temperature of 45°C if the new length of the rod

is 40.05 cm calculate its linear expansivity

Answer 1

$\alpha=\frac{\Delta l}{l\Delta t}=5\cdot 10^{-5}~°C^{-1}.$