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Which outcome occurs when nanoscale surface roughness induces thin-film interference?

A)Increased specular reflection efficiency
B)Reduced transmission due to scattering
C)Enhanced broadband light absorption
D)Polarization shift toward Brewster's angle

💡 Explanation

Enhanced broadband light absorption occurs, because thin-film interference, amplified by surface roughness, leads to destructive interference for reflection. Therefore absorption is higher, rather than specular reflectance, which would require constructive interference and smoother surface.

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