Show that if the lengths of two rods of different solids are inversely proportional to their respective coefficients of linear expansion at the same initial temperature, the difference in length between them will be constant at all temperatures. (b) What should be the lengths of a steel and a brass rod at 0ºC so that at all temperature their difference in length is 0.30 m?

Radhika Batra , 9 Years ago

Grade 11