Two metal rods A and B of equal lengths and equal cross sectional areas are joined…
Physics · JEE Main · NTA Exams — Thermodynamics
Two metal rods A and B of equal lengths and equal cross sectional areas are joined end-to-end. The co-efficients of thermal conductivity of A and B are in the ratio 2 : 3. When the free end of A is maintained at 100°C and the free end of B is maintained at 0°C, the temperature of the junction is
- 30°C
- 40°C
- 50°C
- 60°C
Answer
(B) 40°C
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