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// Example no. 2.1
// To find a)The numerical aperture b)The acceptanca angle c)The relative index defference
// Page no. 38
clc;
clear;
// Given data
n1=1.47; // Refractive index of core
n2=1.45; // Refractive index of cladding
// a)The numerical aperture
NA=(n1^2-n2^2)^(1/2); // Numerical aperture
// Displaying the result in command window
printf('\n The numerical aperture = %0.4f',NA);
// b)The acceptanca angle
imax=asin(NA); // The acceptanca angle
// Displaying the result in command window
printf('\n The acceptanca angle = %0.4f Radian',imax);
// c)The relative index defference
delta=(n1-n2)/n1; // Relative index defference
// Displaying the result in command window
printf('\n The relative index defference = %0.4f',delta);
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