Two plane mirrors are parallel to each other and an object O is placed between them. The distance (in cm) of the first three images from the mirror M2 after reflection from the mirror M2 will be
The correct option is C5,25,35
The object is at a distance of 5cm from M2, thus first image will form at 5cm from M2. Also, object is at a distance of 10cm from M1, so image (A) formed by it will be at 10cm from it. This image (A) will act as object for M2 and second image will be form at 25cm from M2. Similarly, the first image of object in M2 will act as object for M1. Its image (B) in M1 will form at 20cm from it. This will again act as object for mirror M2 and third image will form at 35cm from it.
The first three images will be at a distance 5cm, 25cm and 35cm from mirror M2