The picture below shows me holding a mirror in front of another mirror. This created a never ending virtual image of me holding up a mirror.
In order to understand how a mirror works, you must also understand the laws and principles of light. When a light hits a surface, it bounces off of that surface at a certain angle. The angle that the light hits the surface, or the angle of incidence, will determine how the light bounces off. Objects like prisms scatter a beam of light and show the entire array of waves that are in the single beam of light (Dark Side of the Moon). However a mirror does not alter the incoming beams of light, instead the light rays bounce back. The image from a flat mirror is a virtual image because it cannot be focused, and the rays are not coming out at straight lines. The rays hit our eyes and enable us to see our reflection, however it is not really there.
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