Why is the image formed by a plane mirror of an extended object is inverted left for right not top for bottom?

Asked by reshmi.ghoshray | 31st Jan, 2020, 06:48: PM

Expert Answer:

When an extended object is placed in front of a plane mirror the image formed by plane mirror is laterally inverted. It appears as if the image has been reversed sideways with respect to the object. 
When an object is placed in front of the plane mirror, the right side of the object appears to become the left side and left side of an object appears to become right side of image. This change of sides of an object is known as lateral inversion. 
Due to this lateral inversion, image formed by a plane mirror of an extended object is inverted left for right and not top for bottom. 

Answered by Shiwani Sawant | 3rd Feb, 2020, 12:05: PM