Physics
posted by Zeno .
A light ray in air strikes the surface of a lake at an angle of incidence of 46 degrees. What is the angle of refraction in the water?

Physics 
drwls
Snell's Law says that
1.0* sin I = N*sin R
Use water's index of refraction N to calculate the angle R.
Look up the index of refraction. It is about 1.33
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