A uniform copper rod of length 50 cm and diameter 3 0 mm is

Last updated: 6/26/2023

A uniform copper rod of length 50 cm and diameter 3 0 mm is kept on a frictionless horizontal surface at 20 C The coefficient of linear expansion of copper is 2 0 x 10 5 K and Young s modulus is 1 2 x 10 1 N m The copper rod is heated to 100 C then the tension developed in the copper rod is 2 36 10 N 4 Zem 1 12 x 10 N 3 18 x 10 N