MCQ
For which combination of working temperatures the efficiency of Carnot’s engine is highest
- A$80 K, 60 K$
- B$100 K, 80 K$
- C$60 K, 40 K$
- ✓$40 K, 20 K$
✓
Answer
Correct option: D.
$40 K, 20 K$
d
(d) $\eta = 1 - \frac{{{T_2}}}{{{T_1}}};$ for $\eta$ to be max. ratio $\frac{{{T_2}}}{{{T_1}}}$ should be min.
(d) $\eta = 1 - \frac{{{T_2}}}{{{T_1}}};$ for $\eta$ to be max. ratio $\frac{{{T_2}}}{{{T_1}}}$ should be min.
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