During each cycle

PHYSICS · Single correct · A Level · Physics · Engineering physics · Engineering physics

Problem

During each cycle, a certain refrigerator absorbs

450\,\text{J}

of heat from the cold space and requires

150\,\text{J}

of mechanical work. The coefficient of performance (COP) of the refrigerator is (a)

1.33

(b)

3

(c)

0.33

(d)

4