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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2017
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A carnot engine having an efficiency of $\large\frac{1}{10}$ as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energv absorbed from the reservoir at lower temperature is :

$\begin{array}{1 1} (1) 1\;J \\ (2) 90\;J \\ (3) 99\;J \\ (4) 100\;J\end{array} $

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