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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

A body cools at the rate of 0.75 °C/s, when it is 50°C above the surrounding. Its rate of cooling, when it is 30 °C above the same surrounding, will be

Answer: (D)

Solution

Rate of cooling is proportional to excess temperature:

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Question ID VK-063428