Define incident ray, reflected ray, normal ray, angle of incidence and

1.	Define incident ray, reflected ray, normal ray, angle of incidence and reflection.
Answer» Incident ray – light which falls on the mirror/ polished surface is called incident ray. Reflected ray – ray of light which goes back in the same medium after striking the surface is called reflected ray. Normal – the perpendicular drawn to the reflecting surface is called normal at that point. Angle of incidence – the angle between the incident ray and the normal is known angle of incidence. Angle of reflection – the angle between reflected ray and the normal is known angle of reflection.

Define incident ray, reflected ray, normal ray, angle of incidence and reflection.

Answer»

Incident ray – light which falls on the mirror/ polished surface is called incident ray.

Reflected ray – ray of light which goes back in the same medium after striking the surface is called reflected ray.

Normal – the perpendicular drawn to the reflecting surface is called normal at that point.

Angle of incidence – the angle between the incident ray and the normal is known angle of incidence.

Angle of reflection – the angle between reflected ray and the normal is known angle of reflection.