JEE Main · PhysicsHard
A Carnot engine operates between two reservoirs at temperatures and . If the engine performs of work in each cycle, what is the amount of heat rejected to the cold reservoir?
- A.
- B.
- C.
- D.
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Correct answer: B —
Solution
The efficiency of a Carnot engine is . Since efficiency is , the heat input is , and the heat rejected is .
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