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Which risk increases when protective coatings' thickness approaches light wavelengths?

A)Thin-film interference reduces transmission
B)Rayleigh scattering obscures image details
C)Chromatic aberration blurs the field
D)Diffraction fringes reduce optical clarity

💡 Explanation

Thinning causes destructive interference, because the light reflected from different coating interfaces cancel out certain wavelengths. Therefore, transmission is decreased, rather than scattering which would involve particles or diffraction from edges.

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