Q. An engine is supposed to operate between two reservoirs at temperature $727℃$ and $227℃$. The maximum possible efficiency of such an engine is
A) 1/2
B) 1/4
C) 3/4
D) 1
Explanation
(a) $\eta = \frac{T_{1} - T_{2}}{T_{1}} = \frac{(273 + 727) - (273 + 227)}{273 + 727} = \frac{1000 - 500}{1000} = \frac{1}{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.