the wavelengths of visible light range from about 380 nm to 750 nm. what is the range of photon energies (in eV) in visible light? a typical fm radio station's broadcast frequency is about 100Mhz. what is the energy of an FM photon of the frequency?
i don't know how to get fo which is the threshold frequency. thats the only part im stuck with
The Attempt at a Solution
i don't know how to get fo which is the threshold frequency.