Angle Of Incidence Definition

When a ray of light strikes any surface it reflects or refracts forming an angle with an imaginary line known as ‘normal,’ perpendicular to the surface. The angle formed between the original incident ray and the normal ray is referred to as the angle of incidence. Depending on the surface on which the incidence occurs, and either, reflection or refraction which take place; we see an object in a different way. The laws of incidence, reflection and refraction of light apply in our day to day life, to several media – from seismic waves to the path of a pool ball including Art.
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