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Question 31050
JEE Physics · Medium

Kinetic Theory and Thermodynamics: Refrigerator MCQ

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RefrigeratorMediumQuestion 31050

Question

COP (coefficient of performance) of a refrigerator is defined as:
  1. A
    Work done / Heat removed from cold body
  2. B
    Heat removed from cold body / Work done
    Correct
  3. C
    Heat rejected to hot body / Work done
  4. D
    Temperature difference / Work

Correct answer

Heat removed from cold body / Work done

Explanation

COP_ref = Q_cold / W = Q₂/(Q₁−Q₂). Higher COP = more efficient refrigerator.

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