Physics · 2021
JEE Main · 25 February 2021, Shift 2 · Q25
A reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced by 52 K, its efficiency is…
A reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced by $\displaystyle 52$ K , its efficiency is doubled. The temperature in Kelvin of the source will be \_\_\_\_.
Official answer
208
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.