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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
- Radius of first orbit of the electron in a hydrogen atom is 0.53 Å. So the radius
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- If the dipole moment of a short bar magnet is 1.25 A-m², the magnetic field on its
- If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
- Bohr’s postulates quantizes
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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