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MCAT Physics Question — Angle of Refraction

Light exits a Sylgard 184 silicone elastomer, index of refraction = 1.4, into air, index of refraction = 1, with an angle of incidence of 30°. What is the angle of refraction in the air on the other side of the Sylgard/air interface?   a) 30°   b) 45°   c) 60°   d) No