An object is 1 m away from a plane mirror. The distance between the object and its image is:
When an object is moved a distance x away from a plane mirror, the distance between the object and its image increases by 2x. Give reason.
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.