The internal energy of a solid also increases when heat is transferred to it from its surroundings. A 5 kg solid bar is heated at atmospheric pressure. Its temperature increases from 20^(@)C " to "70^@C . The linear expansion coefficient of solid bar is 1 xx 10^(-3)//KgC^@. The density of solid bar is 50 kg//m^3.The specific heat capacity of solid bar is 200 J//Kg C^@ The atmospheric pressure is 1xx10^(5)N//m^2 The increase in the internal energy of the solid bar is

The internal energy of a solid also increases when heat is transferred

1.	The internal energy of a solid also increases when heat is transferred to it from its surroundings. A 5 kg solid bar is heated at atmospheric pressure. Its temperature increases from 20^(@)C " to "70^@C . The linear expansion coefficient of solid bar is 1 xx 10^(-3)//KgC^@. The density of solid bar is 50 kg//m^3.The specific heat capacity of solid bar is 200 J//Kg C^@ The atmospheric pressure is 1xx10^(5)N//m^2 The increase in the internal energy of the solid bar is
Answer» 49500 J 48500 J 49000 J 50000 J Answer :B