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Temperature difference of 120^(@)C is ma...

Temperature difference of `120^(@)C` is maintained between two ends of a uniform rod AB of length 2L. Another bent rod PQ, of same cross-section as AB and length`(3L)/(2)`, is connected across AB (See figure). In steady state, temperature difference between P and Q will be close to :

A

a) `45^(@)C`

B

b) `75^(@)C`

C

c) `60^(@)C`

D

d) `35^(@)C`

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Knowledge Check

  • Heat is flowing through two cylindrical rods of the same material. The diamters of the rods are in the ratio 1: 2 and the length in the ratio 2 : 1 . If the temperature difference between the ends is same then ratio of the rate of flow of heat through them will be

    A
    `1 : 1`
    B
    `1 : 8`
    C
    `2 : 1`
    D
    `8 : 1`

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