A ray of light passes from air through a sheet of glass and out the other side, as shown.
Which two angles are equal to each other?
angle of incidence at boundary 1 and angle of incidence at boundary 2
angle of incidence at boundary 1 and angle of refraction at boundary 1
angle of incidence at boundary 1 and angle of refraction at boundary 2
angle of refraction at boundary 1 and angle of refraction at boundary 2
