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प्रश्न
Carnot engine cannot give 100% efficiency, because we cannot ______.
विकल्प
eliminate
find ideal sources
prevent radiation
reach absolute zero temperature
MCQ
रिक्त स्थान भरें
उत्तर
Carnot engine cannot give 100% efficiency, because we cannot reach absolute zero temperature.
Explanation:
η = `1 - "T"_2/"T"_1`
for 100% efficiency when T2 = 0K
In reality, it is impossible to achieve T2 = 0K
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Carnot Engine
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