Q.
A body in a room cools from 90oC to 80oC in 5 minute. The time taken to cool from 70oC to 60oC is ?
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a
5 minute
b
Less than 5 minute
c
More than 5 minute
d
Less or more than 5 minute depending on the nature of the liquid
answer is C.
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Detailed Solution
AS THE temperature difference is decreased the body will take more time to cool through same range of temperature.
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