Teaching UKPSC Lecturer Mock Test Series 2024 Physics Thermal Properties of Matter Newton’s law of cooling
A body cools from 70°C to 40°C in 5 min. Calculate the time it takes to cool from 60°C to 40°C. The temperature of the surrounding is 20°C.
1
3.77 min
2
3.56 min
3
3.68 min
4
3.89 min