Angle of incidence, reflection, and refraction

[aimslin22]

Homework Statement

What are the difference among angle of incidence, reflection, and refraction when light strikes two parallel surfaces?

What does it mean "light is incident on film"?-is that the angle of incidence?

The Attempt at a Solution

I know how to find all of them, but I think I should know the difference-especially when they only ask for one. Thanks!

 

[LowlyPion]

"Incident on" just means impinges on or contacts or encounters. There is no implication as to direction. That would be conveyed as angle of incidence.

Reflection:
http://en.wikipedia.org/wiki/Reflection_(physics)#Reflection_of_light
Refraction:
http://en.wikipedia.org/wiki/Refraction