246) The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
Answer is:
(C.O.P.)P = (C.O.P.)R + 1
Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers
Answer is:
Incorrect
Answer is:
Biot number
Answer is:
the ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body
Explanation:
According to Kirchhoff's law, the ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body.