A uniform metal rod of 2mm2 cross section is heated from 0 C

Last updated: 6/9/2023

A uniform metal rod of 2mm2 cross section is heated from 0 C to 20 C The coefficient of linear expansion of rod is 12 x 10 6 C Its young s modulus of elasticity is 1011 N m2 The energy stored per unit volume of rod if the rod is free to expand is 1 zero 3 5760 J m 2 1500 J m 4 1440 J m