Which radio station broadcasts a longer wavelenght 93.9 FM or 104.3 FM?

Radio stations broadcasting at a lower frequency have a longer wavelength than those broadcasting at a higher frequency.

The wavelength of a radio wave is inversely proportional to its frequency.

$$λ=c/f$$

Here:

λ=wavelength

c=speed of light (≈3*10^8 m/s)

f=frequency.

93.9 FM radio station has a longer wavelength because it has a lower frequency (93.9 MHz) than 104.3 FM (104.3 MHz) radio station.