Question: what is the relationship between wavelength of light and the quantity of energy per photon?
Answer: The energy of light varies inversely with the length of the photon waves; that is, the shorter the wavelength, the greater the energy content. The energy (e) of a photon is given by the equation e = hc/λ, where c is the velocity of light, h is Planck's constant, and λ is the light wavelength.