Physics
Heat
Easy
Question
Two bars of thermal conductivities K and 3K and lengths 1 cm and.2 cm respectively have equal cross-sectional area, they are joined lengths wise as shown in the figure.
If the temperature at the ends of this composite bar is 0°C and Kll respectively (see figure), then the temperature 
of the interface is
- 50oC
- 60oC
The correct answer is: 60oC
Temperature of interface
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