A beam of light travels from air (n = 1) to water (n = 1.33) to acrylic (n = 1.5). If the angle of incidence from air to water is 60 degrees, determine the angle of the light entering the acrylic.

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Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as: