If one station broadcasts at 90.5 MHz and another one at 107.1 MHz which stations signal has waves with longer wavelengths?
1 Answer
90.5 MHz will have the longer wavelength.
Explanation:
The formula relating frequency,
You don't need to memorize this. Remember what the SI units are for each of those and get the equation to balance.
SI units:
the frequency unit is
#1/s#
the wavelength unit is#m#
the velocity unit is#m/s#
The velocity is the one with the most complicated units so start with that:
You need the units you plug into whatever is on the right side of the equal sign to give you
will do the job.
The velocity is fixed. So the choice is between 90.5 MHz and 107.1 MHz. Which will give you a numerically larger lambda?
I hope this helps,
Steve