it help people to see in dark
with rough surface, the light hitting it will reflect incoherently, meaning it will be scattered in every direction and with smooth surfaces like ice or mirror the light will reflect coherently, all going in the same direction
All surfaces reflect light. However, only the smoothest surfaces reflect all light in one direction. These are shiny and include mirrors and metal. Some surfaces just reflect the light in all directions, which is why you cannot see the reflection.
Diffused reflection.
Specular reflection is from smooth surfaces, and the light is reflected at a definite angle. Diffuse reflection is from rough surfaces, and the light is scattered in all directions. The difference between Specular Reflection and a Diffuse Reflection is that Specular Reflection is from a mirror- like surface, which creates an image of its surroundings. Diffuse reflection is from a rough surface, which does not create a clear image but instead allows you to see what is on the surface.
When light waves hit a rough surface they create a diffuse reflection. This means that the waves spread out in different angles.
Reflection off of rough surfaces is called a perkokepuw.
A reflection
Reflection of light from a rough surface is known as "Diffused" or "Irregular" reflection, because the light rays are barely seen after the reflection of light from a rough surface.
Light reflections off of a smooth surface are considered to be spectral. Light reflections off of rough surfaces are considered to be diffuse
with rough surface, the light hitting it will reflect incoherently, meaning it will be scattered in every direction and with smooth surfaces like ice or mirror the light will reflect coherently, all going in the same direction
All surfaces reflect light. However, only the smoothest surfaces reflect all light in one direction. These are shiny and include mirrors and metal. Some surfaces just reflect the light in all directions, which is why you cannot see the reflection.
Diffused reflection.
The angle of reflection and coherence of the light coming off a surface relies on the surface being smooth to keep the reflected photons returning at very close to the same pattern as it hits the mirror. A rough surface reflects the photons at many different angles - there is some reflection but in general it is so degrade we can barely see a reflection. The law of law of reflection says that for smooth surfaces, the angle of reflection is the same as the angle of incidence. If the light hits at many different angles, the light returned comes at many different angles; not a good thing for perceiving a reflection.
Generally Two types.Specular: Smooth surfaces direct reflected light at opposite angle. A mirror is a good example of specular reflection.Diffused: Rough surfaces scatter light in all directions. Matt white surfaces are examples.There are other surfaces that combine both types of reflection.(See the Sources and related links below for more information)
Generally Two types.Specular: Smooth surfaces direct reflected light at opposite angle. A mirror is a good example of specular reflection.Diffused: Rough surfaces scatter light in all directions. Matt white surfaces are examples.There are other surfaces that combine both types of reflection.(See the Sources and related links below for more information)
The scattered reflection occurs when a straight ray of light is reflected from hitting rough concrete.
Specular reflection is from smooth surfaces, and the light is reflected at a definite angle. Diffuse reflection is from rough surfaces, and the light is scattered in all directions. The difference between Specular Reflection and a Diffuse Reflection is that Specular Reflection is from a mirror- like surface, which creates an image of its surroundings. Diffuse reflection is from a rough surface, which does not create a clear image but instead allows you to see what is on the surface.