I'm so puzzled right now (sorry if I'm being stupid or something) , we can clearly see that EM waves oscilate the electrons in a conductor,they start vibrating and create EM waves again and these EM waves oscilate some other electrons and again they create another EM wave. All EM waves are supposed to work like that and we use this interesting phenomenon in radio,TV,microwaves,etc. And of course all EM a waves have different "abilities" such as reflection,refraction,absorption,diffraction,interference. Recently I've read that light itself,because of being an EM wave,oscillates electrons and it states that because of this oscillation of electrons light can reflect and be absorbed by other bodies (not sure about refraction). Like when light reflects,these oscilating electrons create EM waves thus we see reflection. And there is this difficult photon theory that i don't even really understand,some people state that this oscillating theory is incorrect but I don't understand how if light IS considered as an EM wave,so it IS supposed to oscilate electrons and create EM waves. I'm really puzzled.