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Temperature difference of \( 120^{\circ} \mathrm{C} \) is maintained between two ends of a uniform rod \( A B \) of length \( 2 L \). Another bent
\( \mathrm{P} \) rod \( P Q \), of same cross- section as \( A B \) and length \( \frac{3 L}{2} \), is

W connected across \( A B \) (See figure). In steady state, temperature difference between \( P \) and \( Q \) will be close to
[JEE (Main) 2019]
(a) \( 75^{\circ} \mathrm{C} \)
(b) \( 45^{\circ} \mathrm{C} \)
(c) \( 60^{\circ} \mathrm{C} \)
(d) \( 35^{\circ} \mathrm{C} \)
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