A Carnot engine, having an efficiency of $\eta = 1/10$ as heat engine, is used as a refrigerator. If the work done on the system is $10\ J$, the amount of energy absorbed from the reservoir at lower temperature is ....... $J$
AIEEE 2007,NEET 2017,AIPMT 2015,JEE MAIN 2020, Diffcult
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