How can we make a ray of light bend toward the normal?

Question

How can we make a ray of light bend toward the normal?

Responses

We can make it travel through glass - no response given

We can make it travel from glass into air - no response given

We can make it travel from air into glass - not selected, this is the correct answer

We can make it travel through water

Answer 1

- By immersing the ray of light in a denser medium, such as water, it will bend towards the normal. This is due to the change in speed of the light wave as it transitions from one medium to another. The change in speed causes the wave to change direction and bend towards the normal line perpendicular to the surface of the new medium.