JEE Mains · Physics · STD 11 - 11. thermodynamics
An engine operating between the boiling and freezing points of water will have \(1.\) efficiency more than \(27 \%\) \(2.\) efficiency less than the efficiency a Carnot engine operating between the same two temperatures. \(3.\) efficiency equal to \(27 \%\) \(4.\) efficiency less than \(27 \%\)
- A \(2,3\) and \(4\) only
- B \(2\) and \(3\) only
- C \(2\) and \(4\) only
- D \(1\) and \(2\) only
Answer & Solution
Correct Answer
(C) \(2\) and \(4\) only
Step-by-step Solution
Detailed explanation
\(\eta=\left(1-\frac{273}{373}\right) \times 100=26.8 \%\)
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