CONCEPT: - Plane Mirror: A plane mirror is a mirror with a flat (planar) reflective surface.
The characteristics of an image formed in a plane mirror:
- The image formed by the plane mirror is virtual and erect i.e. image cannot be projected or focused on a screen.
- The distance of the image 'behind' the mirror is the same as the distance of the object in front of the mirror.
- The size of the image formed is the same as the size of the object.
- The image is laterally inverted, i.e. left hand appears to be the right hand when seen from the plane mirror.
- If the object moves towards (or away from) the mirror at a certain rate, the image also moves towards (or away from) the mirror at the same rate.
EXPLANATION: - From the above, it is clear that the image we see in the plane mirror is virtual and is laterally inverted. Therefore option 3 is correct.