The perfect demonstration of Snell’s Law doesn’t exi—pic.twitter.com/nv1KgASipt
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Indeed. Just thought I'd throw out a couple of other approaches. My maxim is always "if something can consistently be explained in more than one way, it's worth doing". In math, it becomes "if it can be proven, it's worth proving in more than one way."
It tells us the exiting angle θ₂ of light , as a function of the incident angle θ₁
