Teaching OSSSC TGT Teachers Mock Test Series 2025 Physics Thermal Properties of Matter Newton’s law of cooling
Liquid is filled in a vessel which is kept in a room with temperature \(20^\circ C\). When the temperature of the liquid is \(80^\circ C\), then it loses heat at the rate of 60 cal/sec. What will be the rate of loss of heat when the temperature of the liquid is \(40^\circ C\).
1
180 cal/sec
2
40 cal/sec
3
30 cal/sec
4
20 cal/sec