How Do Light Rays Travel from A to B via Refraction or Reflection?

[jamieXX96]

Homework Statement

The directions state that you "must trace the light rays that would travel from A to B via refraction or reflection. Show what angle must be equal to what. Why does light take the path you charted

Homework Equations

The Attempt at a Solution

I have provided the originals and then I traced the light rays, and then put in red the angles that were equal. The dotted lines are the "normal".

In the first picture the light takes the path that it does because of reflection. In the second it is because of reflection and refraction.

 

[tiny-tim]

hi jamieXX96!

yes, your answers are fine

(except that your middle dotted line in the first diagram is obviously not the normal! )