Question

definition of normal angle of incidence​

Answer 1

normal incidence The condition in which a wave-front is parallel to an interface, such that the ray path is perpendicular (normal) to the surface. The angle of incidence is zero. See also SNELL'S LAW. "normal incidence." A Dictionary of Earth Sciences. .

Answer 2

Answer:

Normal is the line perpendicular to the surface of refection.

Angle of incidence is the angle made by the incident ray and the normal.

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