Question

List four properties of the images formed by a plane mirror.

Answer 1

Properties of the images formed by a plane mirror:

1. Virtual Image:
The image formed by a plane mirror is virtual. This means that the image cannot be captured on a screen since the rays of light do not actually meet at the image location. Instead, they appear to diverge from a point behind the mirror. The image can be seen only by looking into the mirror.

2. Upright Image:
The image formed by a plane mirror is always upright. This means that the image appears in the same orientation as the object. If the object is placed upright in front of the mirror, the image will also be upright, without any rotation or flipping. This property distinguishes a plane mirror from other types of mirrors like concave or convex mirrors, which can produce inverted or distorted images.

3. Same Size:
The image formed by a plane mirror is of the same size as the object. The magnification factor for a plane mirror is 1, meaning the image and the object are of identical dimensions. The image is not enlarged or reduced compared to the object. This is true regardless of how far the object is from the mirror, as long as the mirror remains plane.

4. Laterally Inverted (Mirror Image):
The image formed by a plane mirror is laterally inverted. This means that the left and right sides of the image are reversed compared to the object. For example, if you raise your right hand in front of the mirror, the image will show your left hand raised. This lateral inversion occurs because of the way light rays reflect off the mirror. It is important to note that the top and bottom of the image remain unchanged.

These properties collectively define the characteristics of the image formed by a plane mirror. These properties are widely observed and can be easily verified with simple experiments using a plane mirror, such as looking into a flat mirror to observe your own reflection. Plane mirrors are commonly used in everyday life for personal grooming, decoration, and in optical instruments due to their unique ability to create virtual, upright, and same-size images that are laterally inverted.