A bucket full of hot water is kept in a room and it cools from 75-C to 70- in T1 minutes- from 70-C to 65-C in T2 minutes and from 65-C to 60-C in T3 minutes- Then

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Byju's Answer

Standard XII

Physics

Heat Capacity

A bucket full...

Question

A bucket full of hot water is kept in a room and it cools from $75^{\circ} C$ to $70^{\circ}$ in $T_{1}$ minutes, from $70^{\circ} C$ to $65^{\circ} C$ in $T_{2}$ minutes and from $65^{\circ} C$ to $60^{\circ} C$ in $T_{3}$ minutes. Then

T_{1} = T_{2} = T_{3}

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T_{1} < T_{2} < T_{3}

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T_{1} > T_{2} > T_{3}

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T_{1} < T_{2} > T_{3}

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Solution

The correct option is B $T_{1} < T_{2} < T_{3}$
The rate of cooling decreases with the decrease in temperature difference between the body and surroundings.

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A bucket full of hot water is kept in a room and it cools from 75∘C to 70∘ in T1 minutes, from 70∘C to 65∘C in T2 minutes and from 65∘C to 60∘C in T3 minutes. Then

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