A 89 nm thick coating is applied to the lens what must be

Reference no: EM13610032

Antireflection coatings can be used on the inner surfaces of eyeglasses to reduce the reflection of stray light into the eye, thus reducing eyestrain.

(a) A 89 nm thick coating is applied to the lens. What must be the coating's index of refraction to be most effective at 456 nm? Assume that the coating's index of refraction is less than that of the lens.

(b) If the index of refraction of the coating is 1.36, what thickness should the coating be so as to be most effective at 456 nm? The thinnest possible coating is best.

Reference no: EM13610032

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