Question

A bucket full of hot water is kept in a room. It cools from to in minutes, from to in minutes and from to in minutes. Which of the following relation is correct?

A

B

C

D

Medium

Solution

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Correct option is B)

By Newton's law of cooling

where is inversely proportional to product of mass and specific heat of the water, and are surrounding and average waterΒ 
temperatures and is the time interval.
given that for case (i) ,Β ,

case (ii) ,Β ,

case (iii),Β ,

by comparing above three cases
option (B) is the correct answer

Solve any question of Thermal Properties Of Matter with:-

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