APFIVE Thin-Film Interference in Different Media
A soap film (n=1.33) in air shows destructive interference for reflected light with wavelength 500 nm. If the film is placed in water (n=1.33) instead of air, what happens to the interference pattern?
A
The interference pattern disappears
B
The wavelengths showing destructive interference double
C
The pattern shifts due to phase changes during refraction
D
The pattern remains unchanged
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