The energy, E, in a single photon is given by E = h*c/λ where h is Planck's constant (6.6260693*10-34 J.s), c is the speed of light (299792458 m/s) and λ is the wavelength (590*10-9 m).
The energy, E, in a single photon is given by E = h*c/λ where h is Planck's constant (6.6260693*10-34 J.s), c is the speed of light (299792458 m/s) and λ is the wavelength (590*10-9 m).