How is the angle of deviation related to the angle of incidence?

Question

IS THERE ANY FUNCTION....

THANX A LOTTT

Answer 1

Angle of incidence= angle of deviation, measured from the normal line.

see this link http://cns.bu.edu/pub/laliden/WWW/Vision...

Answer 2

1st answer is correct for the angle of reflection, but not for the angle of deviation, which is the path-change angle of a refracted ray. If you're looking for the deviation angle of a prism (which is the context I've most often seen the term used in), see the ref.

If you are only interested in the deviation of a ray refracted through a parallel-sided slab, it would simply be the difference between the angle of incidence and the angle of refraction (from Snell's law, also covered in the ref.).