Two plates of equal areas are placed in contact with each other . Their thickness are `2 cm` and `3
Channel: Doubtnut
Date: 2020-01-28

Two plates of equal areas are placed in contact with each other . Their thickness are `2 cm` and `3 cm` respectively. Temperature of the external surface of the first plate is `-25^(@)C` and that of the external surface of the second plate is `25^(@)C` What will be temperature of contact surface if the plates:- (i) Are of same material (ii) Have thermal conductivity in ratio `2:3`.