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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
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- When a ceiling fan is switched off its angular velocity reduces to 50% while
- A body of mass 2 kg is moved by a force F=3x where x is the distance covered.
- A force of 10 newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum
- A stone of mass 1 kg tied to a light inexensible string of length L=10/3 is whirling
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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