Q20. The efficiency of the Carnot's Engine working between 150°C and 50°C is: Physics — Heat and Thermodynamics — Question 20 of 415A. 22.3% B. 20.0% C. 23.6% D. 30.6% E. 33.6% Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →