![]() ![]() Q. Which of the following phenomenon has two angles that are equal to each other?Īccording to Snell’s law of reflection, the angle of reflection with normal is equal to the angle of incidence with that normal and all these lies in the same plane. ![]() So, in case of parallel mirrors, we get infinite images. Image Formation by Plane Parallel MirrorsĪs shown in the figure, infinite images are formed when an object placed is placed between two parallel plane mirrors.Ĭonsider an object placed in between the mirrors and we can actually see the image, in this case, the number of images would range from 1 to X (X being a very large number depending on your position relative to the mirror and object, and X not infinity). Thus, this type of reflection doesn’t form an image. In such a type of reflection rays of light that hit an irregular object with a rough surface, are reflected back and scatter in all directions. Here, the incident ray which is reflected along with reflected ray doesn’t have the same angle to the normal as the incident ray. Diffused/ Irregular Reflection:ĭiffused/Irregular reflection is a non-mirror-like reflection of light. In such a type of reflection, the rays of light that are reflected from a smooth and shiny object such as a mirror, are reflected at a definitive angle and each incident ray which is reflected along with the reflected ray has the same angle to the normal as the incident ray. Thus, this type of phenomena causes the formation of an image. Specular/Regular reflection is the mirror-like reflection of rays of light. The incident ray, the normal and the reflected ray, all lie in the same plane. At the point where the light enters the second material, the light will travel in a different direction than the incident light. The rest of the light enters the second material. The angle of incidence is equal to the angle of reflection.ī. When light traveling through one material reaches a second material, some of the light is reflected. Hence the above information gives us the “Laws of Reflection of Light” which state that :Ī. This normal is what divides the incident ray and the reflected ray equally and gives us the “Angle of Incidence” (Qi) and “Angle of Reflection” (Qr). The simplest example of visible light reflection is the surface of a smooth pool of water, where incident light is reflected in an orderly manner to produce a. The ray that leaves the mirror is known as “Reflected Ray”.Īt the point of incidence where the incident ray strikes the mirror, a perpendicular line is drawn known as the “Normal”. In the diagram given above, the ray of light that approaches the mirror is known as “Incident Ray”. You can download Light Cheat Sheet by clicking on the download button below For example, twinkling of stars or light reflected by a mirror. Before, after and during reflection light travels in a straight line. This phenomenon is what enables us to look at the world around us based. When a ray of light falls on any object (polished, smooth, shiny object), light from that object bounces back those rays of light to our eyes and this is known as “Reflection” or “Reflection of Light”. ![]()
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