A Carnot engine having an efficiency of is being used as a refrigerator

PHYSICS · Single correct · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

A Carnot engine having an efficiency of

\frac{1}{10}

is being used as a refrigerator. If the work done on the refrigerator is

10 \text{ J}

, the amount of heat absorbed from the reservoir at lower temperature is: (1)

99 \text{ J}

(2)

100 \text{ J}

(3)

1 \text{ J}

(4)

90 \text{ J}