Question

Two plates of equal areas are placed in contact with each
other. Their thicknesses are 2 cm and 3 cm respectively.
The 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. Their thermal conductivities are in the ratio 2:3.
The temperature of the contact surface
(a) 0°C
(b) -5°C
(c) 5°C
(d) 10°C​

Answer 1

Answer:

Explanation:

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