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clear
//
//
//
//Variable declaration
V=2.405; //V-number
lamda=1300*10^-3; //wavelength(micro m)
n1=1.466; //core refractive index
n2=1.46; //cladding refractive index
//Calculations
r=V*lamda/(2*%pi*sqrt(n1^2-n2^2)); //maximum radius for fibre(micro m)
//Result
printf("\n maximum radius for fibre is %0.2f micro m",r)
printf("\n answer varies due to rounding off errors")
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