55. Thin film coating is a technique for anti-reflection. How thick a thin film with the refractive index of 1.25 should be coated on a glass surface (n=1.5) to eliminate the reflection for the wavelength of 600 nm? Only consider normal incidence.
(A) 120 nm
(B) 150 nm
(C) 300 nm
(D) 500 nm
(E) 600 nm

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統計: A(10), B(1), C(1), D(1), E(0) #3233321

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