The orange light in the previous diagram provides one example of
a wavelength calculation. As another example, what is the wavelength
used by the FM station KPFK in Los Angeles, which has a frequency
of 90.7 megahertz (MHz), or megacycles (Mc) per second?
= 90.7 Mc or
90.7 x 10
= c /
cm / 90.7
KPFK has a broadcast wavelength of 330 cm or 3.3 meters.