An image that is laterally inverted means is inverted from left to right, like an image seen in a mirror. The right side of the object appears as its left side, and vice versa. If a person looks into a mirror and raises his right hand, the image in the mirror makes it look like the person raised his left hand due to lateral inversion.
Lateral inversion
Some of the learners also asked: How is the reflecting surface of the plane mirror?