| ⇦ | 
| ⇨ |
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.
Related Questions: - A spring of spring constant 5 x 10³ Nm⁻¹ is streched intially by 5 cm from
- Kirchoff’s I law and II laws of electricity prove respectively the
- In a thermodynamic system, working substance is ideal gas. Its internal energy
- When a p-n junction is reverse biased, then the current through the junction
- A proton is projected with a speed of 3×10⁶ m/s horizontally from east to west.
Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A spring of spring constant 5 x 10³ Nm⁻¹ is streched intially by 5 cm from
- Kirchoff’s I law and II laws of electricity prove respectively the
- In a thermodynamic system, working substance is ideal gas. Its internal energy
- When a p-n junction is reverse biased, then the current through the junction
- A proton is projected with a speed of 3×10⁶ m/s horizontally from east to west.
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply