Question

how is an image formed on plane mirror​

Answer 1

Images formed by plane mirrors are virtual, upright, left-right reversed, the same distance from the mirroras the object's distance, and the same size as the object.The image formed by a plane mirror is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come.