NEET UG 2017 · Physics · Question 27
NEET 2017 Physics, question 27
Question 27 of the NEET 2017 paper (code A) is a Physics question from Thermodynamics. Its idea, Refrigerator COP Definition, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 2.
Updated 2026-10-08
Q27 · Physics
A carnot engine having an efficiency of as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is :
- 11 J
- 290 JOfficial answer
- 399 J
- 4100 J
Official answer: option 2 · CBSE official answer key
Same idea
The only question on Refrigerator COP Definition
No other NEET paper from 2017–2026 tested this exact idea.
Refrigerator COP Definition: every question and how it was framed
The chapter
Thermodynamics in ten years of NEET
32 questions from 2017–2026, asked in 10 of 10 papers, about 3.1 a paper. Carnot Engine alone had 3.