MHT CET Physics question
A body cools from 50.0°C to 49.9°C in 5 second. How long will it take to cool from 40.0°C to 39.9°C? (Assume the temperature of the surroundings to be 30.0°C and Newton's law of cooling to be valid):
Answer: (B)
Solution
Rate mean excess: and give
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