Light ray 1 strikes the smooth surface of a mirror as shown below. Which of the following is the reflected ray for ray 1?

Ray 2

Ray 3

Ray 4

Ray 5

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.