When a metal rod is heated through ` 30^(@)C` the thermal strain in the rod is ` 3.6 xx 10^(-4)` .what is the coefficient of linear expansion of the metal ?

Explanation

Coefficient of linear expansion of the metal.
of linear expansion of the metal.
` prop = (" thermal strain")/(Deltatheta) = (3.6 xx 10^(-4))/30 = 1.2 xx 10^(-5).^(@) C^(-1)`