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Q.

A bucket fulI of hot water is kept in a room and it cools from 75oC to 70o in T1 minute, from 70oC to 65oC in T2 minute and from 65"C to 60"C in T3 minute; then

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a

T1=T2=T3

b

T1

c

T1>T2>T3

d

T1T3

answer is B.

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Detailed Solution

Rate of loss of heat is directly propotional to temperature difference between the body and its surroundings.T3>T2>T1
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