Question: Compare the minimum thickness needed for an antireflective coating (n = 1.38) applied to a glass lens in order to eliminate. (a) Blue (450nm), or

Compare the minimum thickness needed for an antireflective coating (n = 1.38) applied to a glass lens in order to eliminate.
(a) Blue (450nm), or
(b) Red (700nm) reflections for light at normal incidence.

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