Question

why the phenomenon of reflection takes place when light strikes such a type of surface?

Answer 1

When light strikes a sample, the development of perceived color begins. The phenomena taking place at the surface of the sample where the light first interacts are important in understanding the perceived color and appearance.

If the surface of the sample is very smooth (high gloss), light will be reflected from that smooth surface like a mirror. Here, two important things happen. First, the incident light will be reflected from the smooth surface at the same angle as the incident light. Second, and just as important, the reflected light will have the some color as the incident beam. Light reflected in this manner is not altered or changed other than its direction. This is the “specular component.”