The wavelength will be 2.441 m
The frequency at which the radio broadcasts its program = 122.9 mhz.
The electromagnetic spectrum's longest wavelengths are found in radio waves, a kind of electromagnetic radiation. The distance a wave travels is measured by its wavelength.
Thus,
Using the formula of wavelength -
c = fλ
where -
c is the speed of light = 3 x 10^8 m/s
f is the frequency
λ is the wavelength
Substituting the values -
λ = c/f
3 x 10^8 / 122.9
= 2.441
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