Describe why the very thinnest regions at the top of a soap bubble appear dark just…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

Describe why the very thinnest regions at the top of a soap bubble appear dark just before the bubble breaks. Your answer should refer to the film thickness relative to the wavelength and the phase relationships of the reflected rays.

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