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climbak said:

[quote author=nikokapo link=1209487097/30#32 date=1209588251]

but what about the minimal angle from the water?

i mean, the "entering" angle had NOTHING to do with the angle of light in the water :S

but what about the minimal angle from the water?

i mean, the "entering" angle had NOTHING to do with the angle of light in the water :S

n[sub]1[/sub]sin(theta[sub]1[/sub] = n[sub]2[/sub]sin(theta[sub]2[/sub]) where theta is the angle the ray of light makes with the line that is perpendicular to the surface.

The equation can be derived in many ways but I think in this case the best way to think about it is Fermat's Principle of Least Time which states that light will travel in a medium in such a way as to minimize the overall time it takes to go from point A to B. [/quote]

my brain hurts..stop it. lol ;D