The distance between an object and its image in a plane mirror is 20 cm. The object distance is:
An object is placed at 20 cm in front of a plane mirror the mirror is moved 15 cm away from the object find the: (a) distance between the object and image. (b) distance between two positions of the image.
An object is situated at a distance of 18cmfrom a plane mirror. What is the distance between the object and its image formed by the mirror?