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Snell's Law

Ratio of the sine of the angle of incidence and angle of refraction is constant.

Absolute refractive index

Behaviour of refraction

When light travels from a material into one with a greater absolute refractive index/ density, it bends towards the normal.

Critical angle

Sin(c)= n1/n2 = 1/n2


N is the refractive index.


n2>n1