Figure. (a)shows an object placed in front of a plane mirror. P,Q and R are the three positions where the image of object may be seen, Observer A is able to see the image at position Q. Where does the observer B see the image of the object?

Explanation

Observer B also observes the image of the object of the position Q which is explained by the ray diagram in Fig (b). The position of image will be independent of the position of the observer.