Question

A radio station's channel, such as 100.7 FM or 92.3 FM, is actually it's frequency in megahertz, where 1 MHz=10^6Hz and 1 Hz=1s^-1.
Calculate the broadcast wavelngth of the radio station 99.30 FM.

Answer 1

We can directly solve this problem using the wavelength formula which is:

wavelength = speed of light / frequency

We know from the given that 99.30 FM = 99.30 MHz, therefore:

wavelength = (2.99*10^8 m/s) / (99.30*10^6 Hz) 
wavelength = 3.011 meters