First slide

Convection

Question

A body in a room cools from 90^oC to 80^oC in 5 minute. The time taken to cool from 70^oC to 60^oC is ?

Easy

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

Solution

AS THE temperature difference is decreased the body will take more time to cool through same range of temperature.

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