The law of reflection states that the angle of incidence is equal to the angle of reflection. This means that when a light ray or any other type of wave reflects off a surface, the angle at which it approaches the surface (the angle of incidence) is equal to the angle at which it leaves the surface (the angle of reflection).
When a light ray strikes a surface, it bounces off in a predictable manner. The angle at which the light ray approaches the surface is called the angle of incidence, and the angle at which it leaves the surface is called the angle of reflection. The law of reflection states that the angle of incidence (θi) is always equal to the angle of reflection (θr).
This law holds true for all types of waves, not just light waves. It is a fundamental principle of wave behavior and is essential in understanding how waves interact with surfaces.