Question

Define reflective index in terms of angle of incident and angle of reflection

Answer 1

Answer:

The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. (By convention, all angles in geometrical optics are measured with respect to the normal to the surface—that is, to a line perpendicular to the surface.)

Answer 2

If i is the angle of incidence of a ray in vaccum & r is the angle of refraction then the refractive index n is define as the ratio of the sine of the angle of incidence to the angle of refraction

i.e. sin i / sin r


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