Why does the very thin region at the top of a soap bubble sometimes appear black? 1....

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Physics

Why does the very thin region at the top of a soap bubblesometimes appear black?

1. It is too thin to reflect light. 2. Inverted light waves andnon-inverted light waves reflecting from the two surfaces canceleach other. 3. Both reflected waves are inverted or else neither isinverted. 4. No light passes through them.5. The rest of the filmcreates a shadow that obscures the colors we would otherwisesee.

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Option 2 is correct 2Inverted light waves and noninverted light waves reflecting from the two surfaces cancel each other The colors of a bubble are dependent on the thickness of the film A bubble becomes thinner and thinner as it dries out due to evaporation    See Answer
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