What is specular and diffused reflection?
Answers
Diffusive reflection occur when light falls on rough surface and specular reflection when light falls on smooth surface.
In case of diffusive reflection we can see light from all direction while for specular reflection light is visible from only one direction.
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Answer:
specular:-
Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface.[1]
The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70).[2]
Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions.
diffused reflection:-
Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection. An ideal diffuse reflecting surface is said to exhibit Lambertian reflection, meaning that there is equal luminance when viewed from all directions lying in the half-space adjacent to the surface.
A surface built from a non-absorbing powder such as plaster, or from fibers such as paper, or from a polycrystalline material such as white marble, reflects light diffusely with great efficiency. Many common materials exhibit a mixture of specular and diffuse reflection.
The visibility of objects, excluding light-emitting ones, is primarily caused by diffuse reflection of light: it is diffusely-scattered light that forms the image of the object in the observer's eye.
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