Asked by TimPhysics 🚀

Why does light refract when it passes through two different mediums having different densities?

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Josh Prince

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The light beam slows down when it enters a more dense medium and speeds up when it enters a less dense medium. This means that when the light enters the medium one part of the light beam is travelling faster that the other and so it bends (refracts) away from the normal. If you need this explained in more detail feel free to send me a message

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