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The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
Options
(a) 10
(b) 1
(c) 9
(d) zero
Correct Answer:
9
Explanation:
Coefficient of performance = K
.·. K = T₂ / (T₁-T₂) = 273 / (303-273) = 273 / 30 = 9.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For photoelectric emission from certain metal the cut-off frequency is v
- A DC ammeter has resistance 0.1Ω and its current ranges 0-100A. If the range
- If an electron and a positron annihilate, the energy released is
- The number of significant figures in 0.06900
- A train of mass 2x 10⁵ kg has a constant speed of 20 m/s up a hill inclined
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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