Answer to Question #214400 in Electricity and Magnetism for John Mark

Electricity and Magnetism

Question #214400

Find the critical angle for an air–water boundary. (The index of refraction of water is 1.33.)

Expert's answer

From Snell's law we have,

a"\\mu"_w = "\\frac{1}{Sin(ic)}"

Sin(i_c) = "\\frac{1}{a\u03bcw}"

= "\\frac{1}{1.33}"

i_c = 48^o45'

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