The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.60. A ray of light is incident on the glass at point A with a 30.0° angle of incidence. At what angle does the ray leave the glass at point B?
n1sintheta1 = n2sintheta2
The Attempt at a Solution
(1.52)sin(30) = (1.6)sintheta2
theta2 = 28.359
I have no idea what I did wrong.. should the angle be negative??