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NEET
Exam
NEET
Subject
Physics
Chapter
Thermal Properties of Matter

NEET · Physics · Thermal Properties of Matter

Which of the following is the correct expression and value for the...

Which of the following is the correct expression and value for the heat current (in watts) through the compound bar formed by soldering an iron bar (L1 = 0.1 m, A1 = 0.02 m2{{m}^{2}}, K1 = 79 W m⁻¹ K⁻¹) and a brass bar (L2 = 0.1 m, A2 = 0.02m2{{m}^{2}}, K2 = 109 W m⁻¹ K⁻¹) together, with the free ends of the iron bar and brass bar maintained at 373 K and 273 K, respectively?
Which of the following is the correct expression and value for the heat current (in watts) through the compound bar

Options

  1. A542.0 W
  2. B678.5 W
  3. C789.3 W
  4. D916.1 W

Correct answer

D. 916.1 W

Step-by-step solution

Correct Option is : (D)
916.1 W
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