A rough and unpolished surface is called "unrefined" or "coarse."
When light is reflected from a rough or unpolished surface, it is scattered in various directions due to the uneven surface. This diffused reflection causes the light to be reflected in an irregular manner, resulting in a lack of a clear or focused image.
As with any surface, some of the light will be absorbed by the surface and some will be reflected. If the surface is rough, then the reflected light leaves the surface in a huge number of different directions and so the original beam is not reflected coherently, but is instead scattered in myriad directions.
smooth:- surface of the mirror , floor of the room when polished , surface of wet soaps,glazed tiles & surface of a oily pot . rough :- soles of shoes , surface of a ply board , unpainted wall, surface of a brick & surface of tyres .
The reflection off a rough surface is called diffuse reflection. This occurs when light rays strike a surface and are scattered in many different directions, resulting in a non-specular reflection.
The reflection of a rough surface is called diffuse reflection. In this type of reflection, light is scattered in different directions due to the irregularities on the surface, resulting in a non-specular or non-mirror-like reflection.
interference
rough, unpolished: raw, unrefined, imperfect, unfinished, incomplete
Something rough and unpolished can be described as rugged, raw, or unfinished.
When light is reflected from a rough or unpolished surface, it is scattered in various directions due to the uneven surface. This diffused reflection causes the light to be reflected in an irregular manner, resulting in a lack of a clear or focused image.
Coarse
As with any surface, some of the light will be absorbed by the surface and some will be reflected. If the surface is rough, then the reflected light leaves the surface in a huge number of different directions and so the original beam is not reflected coherently, but is instead scattered in myriad directions.
A rough diamond is a term often used to describe a person who is worthy but unpolished. Just like a rough diamond has potential to be valuable once cut and polished, this person has potential for greatness with some refinement and guidance.
Rough and unpolished describes something that has not been smoothed or refined, usually having a coarse or uneven texture. This term is commonly used to describe surfaces that are irregular, unfinished, or lacking in polish or shine.
Rough solids are physical objects or materials that have a coarse or uneven surface texture. They can be characterized by their irregular, bumpy, or jagged appearance, which can affect how they interact with other objects through friction or abrasion. Examples of rough solids include gravel, sandpaper, and unpolished stones.
It means something or someone is unpolished but has potential. For example, a child with obvious talent or an entry-level employee who shows potential might be referred to as "diamond in the rough"."In the rough" is a diamond that is as found, unpolished or uncut, still in rough form--this is not always even recognized as valuable, since it is not obvious in its rough form as a beautiful stone.
smooth:- surface of the mirror , floor of the room when polished , surface of wet soaps,glazed tiles & surface of a oily pot . rough :- soles of shoes , surface of a ply board , unpainted wall, surface of a brick & surface of tyres .
Well, would you care to have a rough, unpolished knife in your kitchen.