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Three rods of same dimensions have therm...

Three rods of same dimensions have thermal conductivity `3K,2K` and `K` They are arranged as shown in Then the temperature of the junction in steady state is
.

A

`75^(@)C`

B

`(200)/(3)"^(@)C`

C

`40^(@)C`

D

`(100)/(3)'^(@)C`

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