Answer:
There is some change in length when a 33000N tensile force is applied on a steel rod of area of cross - section 10^-3m^2 . The change of temperature required to produce the same elongation, if the steel rod is heated is (The modulus of elasticity is 3 x 10^11N/m^2 and the coefficient of linear equation if steel is 1.1 x 10^-5/^oC )
a.20^oC