Question: . Plastic with n = 1.43 is to be coated on sun-glasses so they reflect eye-damaging near ultraviolet (UVA; = 380 nm) light. What thickness

. Plastic with n = 1.43 is to be coated on sun-glasses so they reflect eye-damaging near ultraviolet (UVA; = 380 nm) light. What thickness coating should you use?

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