Lag1989 task №20.41

Lag1989 task №20.41

Find the minimum thickness dmin of a film with a refractive index n = 1.33; at which light with a wavelength λ₁ = 0.64 μm undergoes maximum reflection, and light with a wavelength λ₂ = 0.4 μm is not reflected at all. Light incidence angle 30 °.

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