This type of reflection can be seen on paper, cardboard, or any irregular surface. This type of reflection can be seen through polished surfaces, mirror surface, etc. Reflected rays are not parallel to each other. Reflected rays are parallel to each other. Light rays fall on an irregular or rough surface. The following table gives the difference between the regular and diffused reflection: This is observed in the case of unpolished or rough surfaces like that of paper, cardboard, sandpaper, rough sheets, etc. Also, the incident ray, reflected ray, and normal which is at the point of incidence, all three of them do not lie in the same plane. The reflected ray from the surface doesn’t form the same angle of reflection which is equal to the angle of incidence. It doesn’t follow any of the laws of reflection. In the case of diffused reflection, the reflection doesn’t occur following the laws of reflection. The going back of the incident light from the surface is known as reflection. There are two types of reflection one is Regular and the second is Diffused reflection. The angle of reflection ∠r refers to the angle between the reflected rays with the normal. The angle of incidence ∠i refers to the angle between the incident rays with the normal.An imaginary line that is perpendicular to the reflecting surface from where the reflection occurs is known as the normal.The ray of light that falls on a reflecting surface is known as the incident ray and the ray that is reflected back is known as the reflected ray.The path of the reflected ray will depend upon the extent of smoothness of the surface, in the case of a smooth surface the reflected ray emerges with the same angle as of incidence and in the latter case suffers irregular reflection and so the reflected ray doesn’t emerge same as that of incidence angle. Let us first have a glance at laws of refraction.
Angles can be measured by any unit, but here, degrees are used. This can be observed on any surface which is rough or smooth. Angle of refraction is defined as the angle between the normal at the interface and refracted ray. The phenomenon of reflection doesn’t change the velocity of light it only reverses the direction of light incident on it. The light after reflection travels in the same medium from where the ray was incident on the surface. The observation of light bouncing off the surfaces is termed reflection. Any surface which is polished or in other words is shiny always acts like a mirror. The light gets reflected from the surfaces. ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.
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