question_answer

Two identical rods AC and CB made of two different metals having thermal conductivities in the ratio 2 : 3 are kept in contact with each other at the end C as shown. A is at \[100{}^\circ C\]and B is at\[25{}^\circ C\]. Then the junction C is at:

A) \[55{}^\circ C~\]         

B) \[60{}^\circ C~\]

C) \[75{}^\circ C\]            

D) \[50{}^\circ C\]