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VITEEE 2018 Solved Paper

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Question : 38

Total: 125

A body cools from 50.0°C to 49.9°C in 5s. How long will it take to cool from 40.0°C to 39.9°C? Assume the temperature of surroundings to be 30.0°C and Newton’s law of cooling to be valid

2.5 s
10 s
20 s
5 s

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