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Three identical rods have been joined at a junction to make it a Y shape structure. If two free ends are maintained at `45^(@)C` and the end is at `0^(@)C`, then what is the junction temperature T?

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According to the question.
Rod are in steady state
So, `H= H_(1) + H_(2)`
`rArr (KA(T-0))/L = (KA(45-T))/L=KA(45-T)/L`
`rArr T= 45-T+45 -T rArr 3T=90 rArr T= 30^(@)`C
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