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1.

What is reflection of Light?

The phenomenon, known as “reflection” or “reflection of light,” occurs when a light beam strikes any polished, smooth, or bright object and bounces back to our eyes.

2.

Incident Ray

A ray of light that falls on the reflecting surface from a light source or an object is called the incident ray.

3.

Reflected Ray

A ray of light that arises from the reflecting surface after reflection from it is called a reflected ray.

4.

Normal

A perpendicular drawn to the reflecting surface at point M (known as the point of incidence) is called the normal to the reflecting surface.

5.

Angle of Incidence

The angle between the incident ray and normal to the point of incidence on the reflecting surface is known as the incident angle or Bugle of incidence. It is denoted by ∠i.

6.

Angle of Reflection

The angle between the reflected ray and the normal to the point of incidence on the reflecting surface is known as the angle of reflection. It is denoted by ∠r.

7.

Point of Incidence

The point of incidence (o) is the point at which light strikes the surface. The normal is a line that is drawn perpendicular to that point.