Hello my question involves what exactly is the frequency and intensity of the light. The E = hf applies to the photon particle aspect of light right? So where is f from, the wave aspect? Also increase f, which increases E makes the electrons eject faster in terms of kinetic energy right, but not increase in numbers. The intensity is what increases the number of electrons ejected but not speed? So is intensity part of the wave aspect? And how is it all related?