Two rods of similar area of cross sectio...

Two rods of similar area of cross section and length are joined as shown in the figure. The ratio of their thermal conductivity is 2:3. The free ends are maintained at `100^(@)C` and `0^(@)C` respectivley. THE temperature at junction in steady state is

`50^(@)C`

`40^(@)C`

`60^(@)`

`80^(@)C`

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