Answer:
The normal line divides the angle between the incident ray and the reflected ray into two equal angles. The angle between the incident ray and the normal is known as the angle of incidence. The angle between the reflected ray and the normal is known as the angle of reflection.
Explanation:
The law of reflection states that θi = θ r, or in other words, the angle of incidence equals the angle of reflection. In fact, reflection of light may occur whenever light travels from a medium of a given refractive index into a medium with a different refractive index.
What determines the angle of reflection is the angle of incidence
When light is reflected on a plane surface the angle of reflection is equal to the angle of incidence i.e. θr = θi .
Angle of reflection ; This is the angle between the reflected ray and the normal ray on a reflecting surface while.
Angle of incidence ; This is the angle between the direction of an oncoming ray ( incident ray ) and the line perpendicular to the reflecting surface.
Hence what determines the angle of reflection is the angle of Incidence
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