defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Physics Thermal Properties of Matter Newton’s law of cooling
A bucket full of hot water is kept in a room and it cools from 75°C to 70°C in t1 minutes from 70°C to 65°C in t2 minutes and from 65°C to 60°C in t3 minutes; then
1
t1 – t2 = t3
2
t1 < t2 < t3
3
t1 > t2 > t3
4
None of these