This may seem like a stupid question, but i just cant get my head around it. Basically i was wondering why a mirror refless light. Of course the simple answer suggests that it just reflexs it back (the basic laws of optics). But then i was also thinking about the photoelectric effect and was wondering why that didnt occur. Surely the photons would hit the mirror and be absorbed causing the photoelectric effect. So i guess im wondering why they dont get absorbed? or do they? What acctully causes reflextion on a sub atomic level? Thanks for any response, my mind is in a state of self doubt and reality twisting.