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Class 11 Physics Practice Test: Thermal Properties of Matter - Newton's Law of Cooling
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Newton's law of cooling is a physical law which states that "The rate of heat loss of a body is directly proportional to the difference in the temperatures between the body and its environment."

Class 11 Physics Practice Test: Thermal Properties of Matter - Newton's Law of Cooling
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3 Questions

1. A liquid cools from 65°C to 55°C in 5 mins. If the surrounding temperature is 35℃, calculate the time taken for temperature to fall from 45°C to 35°C.
2. The rate of cooling of water increases with fall in temperature. True or False?
3. A body has a temperature of 200°C and is kept in a room containing air at 25°C. We can use Newton’s law of cooling. True or False?

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