The coeffcient of performance of a refrigerator working between `10^(@)C` and `20^(@)C` isA. 28.3B. 29.3C. 2D. Cannot be calculated

The coeffcient of performance of a refrigerator working between `10^(@

1.	The coeffcient of performance of a refrigerator working between `10^(@)C` and `20^(@)C` isA. 28.3B. 29.3C. 2D. Cannot be calculated
Answer» Correct Answer - A Given , `T_(1)=273+20=293K,T_(2)=273+10=283K` `therefore` Conefficient performance = `(T_(2))/((T_(1)-T_(2)))=(283)/(293-283)=(283)/(10)=28.3`

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The coeffcient of performance of a refrigerator working between `10^(@)C` and `20^(@)C` isA. 28.3B. 29.3C. 2D. Cannot be calculated

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