[31°C] The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is -20°C,

For Competitive Exams

10th CBSE Maths

The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is -20°C,
the temperature of the surroundings to which it rejects heat is

31°C

41°C

11°C

21°C

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