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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 black body radiates 20 W at temperature 227⁰C. It temperature of the black body
- If a solid ball of metal has a concentric spherical cavity with in it if the ball
- A coil of self-inductance L is connected in series with a bulb B and an AC source
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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