double slit experiment:
in support of the wave theory for light, when you shine a beam of light on the two slits, you get a wave interference pattern(multiple lines, varying in intensity away from the center) so the photons interferes with themselves, behaving as waves...
when they ejected a single photon toward the slits at a time, repetitively, the SAME pattern(wave interference) was made; so if indeed light was composed of particles, then the pattern made in this experiment would be just two lines, instead, there was a wave interference pattern, nobody(as far as i've seen) can explain this
...this isn't all though, when they set up measurement equipment to determine which slit the photon went through, the pattern changes, you dont get the wave interference pattern anymore, the photons act as particles and a pattern of two stripes is made...
so you see... what is it that determines when photons behave as particles or as waves?
