1.

A body cools from 100°C to 70°C in 8 minutes. If the room temperature is 15°C and assuming Newton’s law of cooling holds good, then time required for the body to cool from 70°C to 40°C is ?

A. 14 s
B. 10 s
C. 8 s
D. 5 s
Answer» B. 10 s


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