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← ScienceWhich outcome occurs when thin-film deposition onto silicon proceeds unevenly?
A)Iridescence due to thin-film interference✓
B)Increased substrate thermal conductivity
C)Reduced silicon surface oxidation rate
D)Enhanced electron-hole recombination lifetime
💡 Explanation
Spatial variations in thin film thickness cause constructive and destructive thin-film interference, because light reflects from both surfaces generating the rainbow iridescence. Therefore, iridescence results rather than altered conductivity because of the variation causing light interference
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