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A Carnot engine, having an efficiency of...

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

A

`1 J`

B

`100 J`

C

`99 J`

D

`90 J`

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The correct Answer is:
D
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