Question

A meter scale of steel is calibrated at to ${20}^{\circ }C$ give a correct reading.F ind the distance between 50 cm mark and 51 cm mark if the scale is used at ${10}^{\circ }C$. Coefficient of linear expansion of steel is ${1.1\times {10}^{-5}}^{\circ }{C}^{-1}$

Answer 1

The coefficient of linear expansion, α, for a material is defined as the fractional change in length, divided by the change in temperature.