Question

4x Why does light refract when it encounters the glass in a lens?

A
because it speeds up, which causes it to bend
-x

because it slows down, which causes it to bend

C
because it hits a dense medium, which causes it to bounce off
_x

because it gets absorbed, which causes it to lessen in intensity

Answer 1

Light refracts when it encounters the glass in a lens primarily because it slows down, which causes it to bend. Refraction occurs when light passes from one medium to another (for example, from air to glass) with a different density. As light enters the denser medium (glass), it decreases in speed, which results in a change in direction of the light rays, causing them to bend.

So, the correct choice is:
- **because it slows down, which causes it to bend**.