TS EAMCET Medical 2018 May 2 Shift 2 Paper

Two identical shaped metallic spheres A and B made up of same material of mass 'm' and ‘4 m’ are heated to attain a temperature T j and then they are placed in a container maintained at temperature T2 (T2 < T1). The spheres are thermally insulated from each other. If R is the rate of change of temperature, then the ratio RA & RB is