In the flat mirror, a straight virtual image is created, its size and distance from the mirror is the same as that of the original figure.So, you should sit in a way that both of you are on the same distance from the mirror, if you are about the same size.
In the mirror everything seems "reverse" − at least as far as right and left side are concerned. However, directions up and down do not change, so we may question, how does the mirror "know" what is vertical direction?
In the holographic tool in which holograms are created, laser light is directed by flat mirrors, too.
Holograms are mostly applied as security marks on banknotes, credit cards, identity cards.
