Consider a thin film of soap in air under illumination by


Question: Consider a thin film of soap in air under illumination by yellow light with λ = 0.6 μm in vacuum. If the film is treated as a planar dielectric slab with εr = 1.72, surrounded on both sides by air, what film thickness would produce strong reflection of the yellow light at normal incidence?

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Physics: Consider a thin film of soap in air under illumination by
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