Physics · 2021
JEE Main · 31 August 2021, Shift 1 · Q15
A reversible engine has an efficiency of 1/4. If the temperature of the sink is reduced by 58^° C, its efficiency becomes double. Calculate the…
A reversible engine has an efficiency of $\displaystyle \frac{1}{4}$. If the temperature of the sink is reduced by $\displaystyle 58^{\circ} \mathrm{C}$, its efficiency becomes double. Calculate the temperature of the sink :
Official answer
(4)
$\displaystyle 174^{\circ} \mathrm{C}$
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