why snell law fails
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What are the limitations of Snell's Law?
The limitations of Snell's law in the design of ultrasound transducers. Abstract: Because the refracted sound field of a finite beam extremely depends on the size and on the frequency of the generating element, Snell's law is not applicable to calculate the refraction angle of a finite beam.
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Snell's law is a law that relates the incident angle i and the refraction angle r for an incident medium with a refractive index ni and a refractive medium with a refractive index nr. In particular, nisini=nrsinr. Thus, I will treat it as a law pertaining to the phenomenon of refraction.
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