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JEE Advanced 2025 Paper 2 Online
MCQ (More than One Correct Answer)
+4
-2

The efficiency of a Carnot engine operating with a hot reservoir kept at a temperature of 1000 K is 0.4 . It extracts 150 J of heat per cycle from the hot reservoir. The work extracted from this engine is being fully used to run a heat pump which has a coefficient of performance 10 . The hot reservoir of the heat pump is at a temperature of 300 K . Which of the following statements is/are correct :

A

Work extracted from the Carnot engine in one cycle is 60 J.

B

Temperature of the cold reservoir of the Carnot engine is 600 K.

C

Temperature of the cold reservoir of the heat pump is 270 K.

D

Heat supplied to the hot reservoir of the heat pump in one cycle is 540 J.

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