According to the diagram, which statement is true?

A wavelength is consistent and does not vary.

A wave with a shorter wavelength has higher frequency.

A change in frequency will not be reflected in the wavelength.

A wave with a longer wavelength has higher frequency.

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

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.

How does an observation about an object differ from an inference about that object