Hi everyone, I have a few questions about the composition of light: First, what is it? Is white light the result of all color wavelengths present in an area? Second, if so, then why is there no interference in waves of light (or is there)? Third, if photons all travel at the same speed, then doesn't this imply that the amplitude of a red wave would be greater than the amplitude of a yellow wave? Fourth, why is a photon absorbed or reflected? In other words, what happens, in terms of energy, that causes a photon to bounce, be absorbed, or to have partial reflection/absorption? Thanks.