9. Consider a planar interface with the refractive index ni in the lefthand side and n2 in the right- hand side. Explain what are the boundary conditions needed to be satisfied and how the Snell's rule n, sin(0) = n2 sin(0;) is derived from the boundary conditions.

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9. Consider a planar interface with the refractive index n, in the lefthand side and n2 in the right-
hand side. Explain what are the boundary conditions needed to be satisfied and how the Snell's
rule ni sin(0;) = n2 sin(0;) is derived from the boundary conditions.
Transcribed Image Text:9. Consider a planar interface with the refractive index n, in the lefthand side and n2 in the right- hand side. Explain what are the boundary conditions needed to be satisfied and how the Snell's rule ni sin(0;) = n2 sin(0;) is derived from the boundary conditions.
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