The Formation of Images By a Plane Mirror
If an object A is placed in front of a plane mirror, an image A' will be formed.
The image will be
The same distance behind the mirror as the object is in front.
Virtual – the rays that form the image will only appear to come from the object. In fact the 'virtual rays' are traced back to the image.
The same size as the object.
Laterally inverted – left and right are interchanged. In the diagram the man is shaving with his right hand, but in the mirror he appears to be shaving with his left.