(a) What is the range of wavelengths for FM radio (88 MHz to 108 MHz) and AM radio (535 kHz to 1700 kHz)? (answer: for FM: 2.78m to 3.4m, for AM: 176m to 561m)
(b) Compare 940 on the AM dial to 94 on the FM dial, which has the longer wavelength and by what factor is it larger? (answer 100)