Properties Of Solids And Liquids Question 443

Question: 12 identical rods made of same material are arranged in the form of a cube. The temperature of P and R are maintained at $ 90{}^\circ C $ and $ 30{}^\circ C $ respectively. Then the temperature of point V, when steady state is reached is

Options:

A) $ 65{}^\circ C $

B) $ 60{}^\circ C $

C) $ 20{}^\circ C $

D) $ 50{}^\circ C $

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Answer:

Correct Answer: D

Solution:

[d] $ \frac{90-V}{2R _{T}}=\frac{V-30}{R _{T}}\Rightarrow V={{50}^{o}}C $



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