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MHT CET 2026 (12 May, Shift 1) · Heat Conduction

Heat Conduction question from MHT CET 2026 (12 May, Shift 1)

Q6MHT CET 2026 · 12 MAY · SHIFT 1Medium

Heat Conduction

Three rods made of the same material and the same cross-sectional areas have been joined as shown in the figure. Each rod is of the same length. The temperature of the junction is

Figure

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Answer: (a)

  1. All rods are identical, so each has the same resistance. Heat in from the two hot rods equals heat out through the cold rod.
  2. 2(90−θ)=θ−02(90-\theta) = \theta - 0
  3. 3θ=180⇒θ=60∘C3\theta = 180 \Rightarrow \theta = 60^\circ\text{C}, so the answer is (a).
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