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A ray of light is incident normally on a glass plate 6.00 cm thick and of...

A ray of light is incident normally on a glass plate 6.00 cm thick and of refractive index n = 1.29 If the plate is turned through an angle of 74.0° about an axis perpendicular to the ray, what is the increase in the distance the ray travels in the glass? (nair = 1.00)

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