A light ray travels theough air and hits a thick slab of plastic with an index of refraction of n = 1.42. if the light r
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A light ray travels theough air and hits a thick slab of plastic with an index of refraction of n = 1.42. if the light r
A light ray travels theough air and hits a thick slab of plastic with an index of refraction of n = 1.42. if the light ray hits the interface with an angle of 18.9 from normal. what is the refracted angle in the plastic, measured from the normal?