Question

define the following terms :
(a) incident ray
(b) reflected ray
(c) normal at the point of incidence
(d) angle of incidence
(e) angle of reflection​

Answer 1

Answer:

(a) Incident Ray - The ray falling on a surface.

(b) Reflected Ray - The ray which gets bounced back.

(c) Normal - An imaginary perpendicular line

(d) Angle of Incidence - Angle between Incident Ray and Normal.

(e) Angle of Reflection - Angle between Reflected Ray and Normal.

Answer 2

(a) Incident ray : The ray of light which falls on the surface of a body is called an incident ray.

(b) Reflected ray : The ray of light which is sent back by the reflecting surface is called a reflected ray.

(c) Normal line : The perpendicular line drawn on to the surface of the mirror at the point of incidence is called normal line.

(d) Angle of incidence : The angel made by the incident ray with the normal at the point of incidence is called Angle of incidence or incident angle.

(e) Angle of reflection : The angle made by the reflected ray with the normal at the point of incidence is called Angle of reflection or reflected angle.

Hope it helps ☺