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What is the correct answer?
4
The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same.
A.
Kinematic viscosity
B.
Work
C.
Temperature
D.
None of these
Correct Answer :
D. None of these
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