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Three material A, B and C of equal thick-nes and of thermal conductivity of 20, 40 & 60 kcal/hr. m. °C respectively are joined together. The temperature outside of A and C are 30°C and 100°C respectively. The interface between B and C will be at a temperature of __________ °C. | |
A. | 40 [Wrong Answer] |
B. | 95 [Wrong Answer] |
C. | 70 [Correct Answer] |
D. | 50 [Wrong Answer] |