Q. Two plane mirrors are parallel to each other and spaced 20 cm apart. An object is kept in between them at 15 cm from  A. Out of the following at which point(s) image(s) is/are not formed in mirror A (distance measured from mirror A) :


(A) 15 cm               (B) 25cm                    (C) 45 cm                           (D) 55 cm

Dear Student 

c) 45 cm is the position where no image is formed.
    Image is formed of object at 15 cm , image is formed at 25 cm of the image of object in B , image is formed at 55cm of the image of the object at 25cm from A

In rest of the cases the images formed are of objects and the images in other mirror.

Regards

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