A steel rod of length `1 m` is heated from `25^@ "to" 75^@ C` keeping its length constant. The longitudinal strain developed in the rod is ( Given, coefficient of linear expansion of steel = `12 xx 10^-6//^@ C`).A. `-6 xx 10^(-6)`B. `-6 xx 10^(-5)`C. `-6 xx 10^(-4)`D. zero

A steel rod of length `1 m` is heated from `25^@ "to" 75^@ C` keeping

1.	A steel rod of length `1 m` is heated from `25^@ "to" 75^@ C` keeping its length constant. The longitudinal strain developed in the rod is ( Given, coefficient of linear expansion of steel = `12 xx 10^-6//^@ C`).A. `-6 xx 10^(-6)`B. `-6 xx 10^(-5)`C. `-6 xx 10^(-4)`D. zero
Answer» Correct Answer - C Strain developed: `epsilon = alpha Delta T = (12 xx 10^(-6))(50)=6 xx 10^(-4)` Strain will be negative, as the rod is in a compressed state.

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A steel rod of length `1 m` is heated from `25^@ "to" 75^@ C` keeping its length constant. The longitudinal strain developed in the rod is ( Given, coefficient of linear expansion of steel = `12 xx 10^-6//^@ C`).A. `-6 xx 10^(-6)`B. `-6 xx 10^(-5)`C. `-6 xx 10^(-4)`D. zero

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