Physics

Physics

Problem

A steel rod of length 1 m is heated from 25∘25^\circ to 75∘C75^\circ\text{C} keeping its length constant. The longitudinal strain developed in the rod is (Given, coefficient of linear expansion of steel = 12×10−6/∘C12 \times 10^{-6}/^\circ\text{C} ) a. 6×10−46 \times 10^{-4} b. −6×10−5-6 \times 10^{-5} c. −6×10−4-6 \times 10^{-4} d. zero

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