Question:medium

A Carnot engine operates between the temperatures 850 K and 300 K. The engine performs 1200 J of work each cycle, which takes 0.25 s. The efficiency of this engine is :

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Examiners frequently include "distractor" data in physics problems. If a question explicitly asks for the efficiency of a Carnot engine, completely ignore power, work, time, or heat flow variables if you are already given the two operating temperatures.
Updated On: Jul 31, 2026
  • $\simeq 50\%$
  • $\simeq 65\%$
  • $\simeq 85\%$
  • $\simeq 90\%$
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The Correct Option is B

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