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// Example 2.10
// Calculation of Cut off wavelength
// Page no 482
clc;
clear;
close;
// Given data
V=2.403; // Normalized frequency
delta=0.25; // Refractive index of core
n1=1.46; // Relative refractive index
a=4.5*10^-6; // Radius of core
// Cut off wavelenth
lambda=(2*%pi*a*n1*(sqrt(2*delta)))/V;
//Display result on command window
printf("\n Cut off wavelenth(nm) = %0.0f ",lambda*10^8);
// The answers vary due to round off error
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