MHT CET 2023 Physics question
A ideal refrigerator has freezer at a temperature of C. The coefficient of performance of the engine is 5. The temperature of the air (to which heat is rejected) is
Answer: (B)
Solution
Freezer (cold reservoir) temperature K. For an ideal refrigerator, the coefficient of performance is where is the temperature of the air to which heat is rejected. So $5 =
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