When a light ray passes from air into glass, what happens to its speed ? Draw a diagram to show which way the ray of light bends.

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Solution

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.

The ray of light bends towards the normal.

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When a light ray passes from air into glass, what happens to its speed ? Draw a diagram to show which way the ray of light bends.

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. The ray of light bends towards the normal.

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.

The ray of light bends towards the normal.