state the laws of reflection? give the meaning of refractive index
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Law of reflection states that the incident ray, reflected ray, and the normal at the point of incidence all lie on the same plane.
The angle of reflection is always equal to the angle of incidence.
The ratio of speed of light in vacuum to the speed of light in a medium is called the refractive index of that medium.
The angle of reflection is always equal to the angle of incidence.
The ratio of speed of light in vacuum to the speed of light in a medium is called the refractive index of that medium.
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