Q. Even Carnot engine cannot give 100% efficiency because we cannot
A) Prevent radiation
B) Find ideal sources
C) Reach absolute zero temperature
D) Eliminate friction
Explanation
The correct answer is Option C: Reach absolute zero temperature.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.