I know this is simple..but please help?

Question

I know this is really simple but I forgot what it would be.
(I have a review test tomorrow from stuff we learn awhile ago)

When the angle of incidence increases the angle of refraction...?

Increases Remains the same
Decrease cannot be determined

Thanks for your help.

Answer 1

Snells Law n1 sin(qi) = n2 sin(qr)

sin(qr) = n1/n2 * sin(qi)

So as qi gets bigger the angle of refraction, qr gets bigger since n1/n2 is a constant.