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Question

# A metallic rod is connected between two bodies at temperature Th and Tc (Th>Tc). P,Q and R are the points on the metallic rod along the length (point P being closer to body at temperature Th) where temperature readings are noted as T1,T2 and T3 respectively when the rod has reached steady state. Find the correct option.

A
T1>T2<T3
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B
T1>T2>T3
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C
T1<T2<T3
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D
T1<T2>T3
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Solution

## The correct option is B T1>T2>T3 As x increases, temperature decreases due to energy transfer from hot body to cold body. Since, P is closer to hot body, T1 is greater than T2 and T3 and R being closer to cold body, so T3 is less than T2 and T1. ∴ We can conclude that T1>T2>T3

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