Question

Give two examples each of materials which have rough surface and smooth surface?

Answer 1

smooth- surface of mirror, surface of glazed tiles
rough- surface of plywood and brick

Answer 2

Answer:

There are many materials that are found having rough surfaces or smooth surfaces. Let us take their examples:

1. Example of rough surfaces:

• The first example of rough surface is sandpaper it has many inequalities and really rough on the surface and hence it is used to rub and make the surface of some other materials smooth.
• The Other example would be a nail filer the pointed edges of nails after cutting that a left out on filing with the surface becomes smooth a file has many inequalities on its surface.

2. Example of smooth surfaces:

• The smoother is the surface the most senior it becomes hence the first example of smooth surface is mirror surface is so smooth and Shiny that it reflects the image of anything that stands in front of the mirror.
• The second example is Tile. The surface of a tile becomes slippery because it is really small and has very less inequalities.