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clear
//
//
//
//Variable declaration
n0=1.33; //water refractive index
n2=1.59; //cladding refractive index
NA=0.2; //numerical aperture
//Calculations
n1=sqrt(NA^2+n2^2); //core refractive index
NA=sqrt(n1^2-n2^2)/n0; //numerical aperture
i0=asin(NA); //acceptance angle(radian)
i0=i0*180/%pi ; //acceptance angle(degrees)
//Result
printf("\n core refractive index is %0.4f ",n1)
printf("\n acceptance angle is %0.1f degrees",i0)
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