Q. A Carnot engine with sink’s temperature at $17℃$ has 50% efficiency. By how much should its source temperature be changed to increase its efficiency to 60%?
A) 225K
B) $128℃$
C) 580K
D) 145 K
Explanation
The correct answer is Option D: 145 K.
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.