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?

A. We can make it travel through glass
B. We can make it travel from air into glass
C. We can make it travel from glass into air
D. We can make it travel through water

Answer 1

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

All of the options mentioned can make a ray of light bend toward the normal, but the correct answer is B. We can make it travel from air into glass.