Derive the relation between.Refrective index of the medium and criticalangle
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according to Snell's law = sin i÷(sinr) =n
c is the critical angle. then sinr =sin 90=1
i=c
in case of total internal reflection we n=sin r÷(sini)
then n=1÷(sin c)
c is the critical angle. then sinr =sin 90=1
i=c
in case of total internal reflection we n=sin r÷(sini)
then n=1÷(sin c)
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