A question related to Light, Refraction, & Lenses. Is it accurate to say that the Angle of Incidence + the Angle of any reflected light = 90, in a situation where a Critical Ray is being projected?

Question

ganeshie8 · Answer

@INeedHelpPlease?  @DLS  @Vincent-Lyon.Fr

amonoconnor · Answer

Also, if the Angle of refraction = 90 degrees (Critical Ray), then, IS there any light reflected back, and if so, then would the Angle of reflection + the Angle of Incidence/Critical Angle = 90?

amonoconnor · Answer

http://www.twiddla.com/1504676

amonoconnor · Answer

This link is to an online diagram of the scenario I am asking about. I know a picture is worth a thousand words, and I'm a rambler, so... Hopefully this helps you faithful OS Saviors! :)

anonymous · Answer

whats a critical ray? .. u mean ray projected such that refracted ray just grazes the surface?