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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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- In an LCR series A.C circuit, the voltage across each of the components, L, C and R is 50V
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body takes 5 minute for cooling from 50⁰C to 40⁰C. Its temperature
- A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle
- In an LCR series A.C circuit, the voltage across each of the components, L, C and R is 50V
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
- By sucking through a straw, a student can reduce the pressure of his lungs
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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