AP EAMCET Engineering 21 Apr 2019 Shift 2 Paper

A liquid of mass 250 g is kept warm in a vessel using an electric heater. The liquid is maintained at 57 °C when the power supplied by the heater is 30 W and surrounding temperature is 27 °C. As the heater is switched off. it took 10 s tune for the temperature of the liquid to fall from 47 °C to 46.9 °C. The specific heat capacity of the liquid is