Home Physics Transmission of Heat Thermal Conduction Three rods made of the same material and hav…
Physics Transmission of Heat Thermal Conduction MCQ (Single Correct)

Three rods made of the same material and having the same cross-section are joined as shown in the fig. Each rod is of same length. The left and right ends are kept at 0°C and 90°C respectively. The temperature of the junction of the three rods will be:

A
45°C
B
60°C
C
30°C
D
20°C

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Text Solution

Verified by Experts
The correct answer is:
B

Let the temperature of junction be . Since roads and are parallel to each other (because both having the same temperature difference). Hence given figure can be redrawn as follows

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