A copper ball of mass 100 g is at a temperature T. It is dropped in a copper calorimeter of mass 100 g, filled with 170 g of water at room temperature. Subsequently, the temperature of the system is found to be 75°C. T is (Given, room temperature = 30°C, specific heat of copper = 0 1. cal/g°C)

(a) 885°C

(b) 1250°C

(c) 825°C

(d) 800°C

Satendra Kumar

8 Years agoGrade 12th pass