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← ScienceWhich outcome results when surfactants undergo thin film interference?
A)Colored bands become increasingly visible✓
B)Surface tension decreases exponentially faster
C)Viscosity immediately reaches steady state
D)Foam destabilization decreases proportionally higher
💡 Explanation
As surfactant films thin, light reflection from the film surfaces causes constructive and destructive interference, hence bands of color are seen on these thin films. Therefore colored bands appear, rather than viscosity changes, because interference is an optical phenomenon.
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