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Soap bubbles have color because they reflect light in a weird way. The way the reflect color is based on the thickness of the bubble. Some of the light coming to the bubble reflects off of the inner surface of the bubble, and some off of the outer surface. The two waves of light cancel out or add in different ways, so different colors of light are produced. In a really thin bubble, no light is reflected because the two waves almost exactly cancel with each other, but a 100 nanometer bubble makes a light blue.

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βˆ™ 12y ago
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βˆ™ 5mo ago

The color seen on a soap bubble is due to the phenomenon of thin-film interference. When light reflects off the two surfaces of the bubble film, some colors interfere constructively while others interfere destructively, causing certain colors to be more visible. This creates colorful patterns on the surface of the bubble.

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βˆ™ 13y ago

because light waves interfere with the soap bubbles

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Q: Why colour seen on soap bubble?
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