Question

pic

Answer 1

Is this simple reflection or will it be reflected internally?

Answer 2

http://en.wikipedia.org/wiki/File:Reflection_angles.svg

Answer 3

I think not simple reflection since it's transparent. So you will have this:

You will use refraction's angle relationships to the index of refraction n and reflection.
Someone please make sure I have the right idea or not. I'm sleepy.