Why does light change its velocity (or slows down) when it encounters a glass lens?

Physics

1 answer:

Rufina [12.5K]3 years ago

6 0

Explanation:

what happens is that light slows down when it passes from the less dense air into the denser glass or water. This slowing down of the ray of light also causes the ray of light to change direction. It is the change in the speed of the light that causes refraction.

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