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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
- A car of mass m is moving on a level circular track of radius R
- A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series
- The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
- A heavy small sized sphere is suspended by a string of length l.The sphere rotates
- ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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