I was reading about a case of total internal reflection in mirrors and something got me curious... Is there anything such as 'weak refractions'?? In the diagram of the mirror I saw, as a ray of light from an object entered a mirror, it was reflected by the silver coating, and then by the surface of the mirror (assuming it's because of total internal reflection). This process was repeated three times more, and the light ray emerged out of the mirror. The doubt I have here is, everytime the ray of light was reflected off from the surface of the mirror (total internal reflection), there was a ray of light exiting the mirror at that point. Where exactly did that ray of light come from? Plus, if I may ask further, how many times will total internal reflection have taken place in the above situation?