The efficiency of a Carnot's heat engine is \frac{1}{3}. If the temperature of the source is decreased by 50^{\circ} {\C} and the temperature of the sink is increased by 25^{\circ} {\C}, the efficiency of the engine becomes \frac{3}{16}. The initial temperature of the sink is [AP EAPCET 27 May 2025 S1]

AP EAPCET 27 May 2025 Shift 1 Paper

Section: Physics

Question : 97 of 160

Marks: +1, -0

The efficiency of a Carnot's heat engine is ‌

. If the temperature of the source is decreased by 50∘C and the temperature of the sink is increased by 25∘C, the efficiency of the engine becomes ‌

. The initial temperature of the sink is

[AP EAPCET 27 May 2025 S1]

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