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The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is -20⁰C, the temperature of the surroundings to which it rejects heat is
Options
(a) 11⁰C
(b) 21⁰C
(c) 31⁰C
(d) 41⁰C
Correct Answer:
31⁰C
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If Q, E and W denote respectively the heat added, change in internal energy
- In the equation y=asin(?t+kx),the dimensionals formula of ? is
- A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
- Electrons of mass m with de-Broglie wavelength λ fall on the target in an X-ray tube.
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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