How can I calculate the wavelength from energy?
To calculate the wavelength, you need to know either the frequency or the energy of the radiation.
Wavelength from frequency
You can find the relation between wavelength and frequency at
For example, what is the wavelength of a radio wave with a frequency of
Wavelength from energy
The formula is
For example, what is the wavelength of a photon that has an energy of
3.36 × 10⁻¹⁹ J?