Q60. A frictionless heat engine can be 100% efficient if:Physics — Heat and Thermodynamics — Question 60 of 415A. The temperature of the sink is 0°C.B. The temperature of the sink is 0 K.C. The temperature of the source is 0.D. The temperature of the sink is equal to the temperature of the source.Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →