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NEETPhysicsThermal Properties of Matter

What is the temperature of the junction of an iron bar (L1 = 0.1 m, A1 = 0.02 m2, K1 = 79 W m ⁻¹ K ⁻¹ ) and a brass bar (L2 = 0.1 m, A2 = 0.02 m2, K2 = 109 W m ⁻¹ K ⁻¹ ) when their free ends are maintained at 373 K and 273 K respectively?

Options

  1. A273 K
  2. B315 K
  3. C328 K
  4. D350 K

Correct answer

B. 315 K

Step-by-step solution

Correct Option is : (B) 315 K

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