A cup of coffee cools from 
to 
in 
in a room temperature at 
. How much time with the coffee take to cool from 
to 
in the same room?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
According to Newton's law of cooling, rate of cooling is directly proportional to mean
temperature difference with surroundings
From (i) and (ii),
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