Concept:A plane mirror always forms a virtual image that cannot be caught on a screen.
Explanation:When light rays strike a plane mirror, they reflect according to the law of reflection.
The reflected rays appear to come from behind the mirror.
The brain traces these rays backwards to form the image.
Because the rays do not actually meet, the image is virtual.
The image formed is erect and laterally inverted.
The size of the image is exactly the same as the size of the object.
The image distance behind the mirror equals the object distance in front of the mirror.
A real image can be projected on a screen, but a plane mirror image cannot.
Therefore, the type of image is always virtual.
Answer:D. virtual.