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The relationship is more or less linear within a certain range of angles, but in general it's not linear. You can see it plotted here in the "angle in air" versus "angle in water" graph:
Originally posted by locololo
Our of curiosity, what is the angle that light refracts at when it goes from air to water, or viceversa, and how qould one set up a scope to circumvent this problem.
Originally posted by VonDoomen
reply to post by locololo
why did you start a thread to ask this question? Do you people not know how to use google?