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 : an incident ray is a ray light that strikes a surface . The angle between this ray and the perpendicular or normal to the surfaceis the angle of incidence . The reflected ray , is the ray that represents the light reflected there surface.

b) reflected ray : An incident ray is a of light that strikes a surface . The angle between this ray and the perpendicular or normal to the surface is the angle of incidence.The reflected ray corresponding to a given incident ray , is the ray that represents the light reflected by the surface.

c) normal at the point of incidence : A line drawn perpendicular on the surface (i.e. making 90° angle with the surface) of an object at the point of incidence is called a normal point of incidence .

d) Angle of incidence : The angle formed between the incident ray and the normal is called the angle of incidence

e)Angle of reflection : It's a ray or beam is the angle measured from the reflected ray to the surface normal.From the law of reflection,where is the angle of incidence is measured between the ray and a line normal to the surface that intersects the surface at the same point as the ray

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