Question

What is the wavelength of the radio station 99x if it has a frequency of 99MHz?

Answer 1

You have `99MHz=99xx10^6Hz`
But `c=lambda*nu`
Where:
`c=3xx10^8 m/s` is the speed of lght
`lambda` is wavelength
`nu` is frequency:
rearranging:
`lambda=c/nu=(3xx10^8)/(99xx10^6)=3 m`