For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. This makes the objects above the sea visible to people moving in submarines below it. Two parallel plane mirrors can form an infinite number of images. Plane mirrors are placed at the blind turns of some busy roads so that the drivers can see the vehicles … Plane mirrors have many uses apart from the obvious one of simply to look in. It emits light on its own. explain in detail ​, CA force acts on a body moving with velocityu' and stops it in '1' sec. Article was last reviewed on Tuesday, July 7, 2020, Your email address will not be published. …, define physical quantity. For a plane mirror, angles of incidence and reflection are equal. If their densities are in the ratio 3:2, theratio of th The distance and the size of the image behind the mirror for the object in front of it are equal. If two or more plane mirrors are placed at a certain angle, then multiple images can be formed. A virtual image is produced when the light rays from a source don’t cross or meet at a point to form an image. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface). The image behind the mirror is laterally inverted, upright and virtual.”. Ans. Example: Sun, stars, candle flame. A periscope is a device used in ships and submarines to bring into view objects hidden from normal line of view. Plane mirrors have many uses apart from the obvious one of simply to look in. Without any second thoughts, the invention of mirrors is indeed the greatest contribution to humankind. Ex: chair, umbrella, hair. A good emitter reflects most of the incident light falling on it. This phenomenon is known as lateral inversion. A plane mirror cannot form an inverted image. USES OF PLANE MIRROR ARE - 1. Also, we already know that plane mirrors are primarily used to see the reflection of an object. The front surface can be damaged easily due to scratches and watermarks. Ordinary plane mirrors are coated at the back so that the incident ray is reflected from the back surface instead of the front surface. This image is not real but virtual because the image formed behind the mirror by extending the diverging reflected rays backward. When the pointer moves, the image in the plane mirror also moves. A plane mirror has various exclusive features and characteristics corresponding to the image that it forms, which are as follows: A plane mirror always forms a virtual image. The distance of the object from the mirror (object distance. With such uses and applications of the plane mirrors in the torchlights, they can be used at night and dark places for finding or searching for things.Â, After waking up every morning, the first thing we do is look at ourselves in the mirror for several different purposes, including brushing, shaving, doing makeup, etc.

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