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The effect is the same as when you have a thin film of oil on water. You can also use a hose with a very fine spray mist, pointed into the air on a sunny day and see a real rainbow if you stand in the right place.

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14y ago
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7y ago

The nearest you can achieve easily is obtained by passing a ray of sunlight through a prism.

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Q: How do you make a working model of rainbow?
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