Question

multiple choice question
how does light refract as it moves into a slower, denser medium at an angle?
o it speeds up and changes direction away from the normal.
o it slows down and changes direction toward the normal.
o it speeds up and changes direction toward the normal.
o it slows down and changes direction away from the normal.

Explanation:

When light moves into a slower, denser medium, its speed decreases. According to Snell's law, the light ray bends. The normal is an imaginary line perpendicular to the surface at the point of incidence. In a denser medium (slower speed), the light ray bends towards the normal.

Answer:

It slows down and changes direction toward the normal.