η = 1 - T₂/T₁ = 1 - 300/600 = 0.5 = 50%
A Carnot engine operates between temperatures 600 K and 300 K. Its efficiency is:
JEE Advanced 2025 — Physics Thermodynamics
2025mcqeasy
A Carnot engine operates between temperatures 600 K and 300 K. Its efficiency is:
Official previous-year question
Verified 30 May 2026.
Options
- A
25%
- B
50%
- C
75%
- D
100%
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