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clear
//
//
//
//Variable declaration
vf=3*10^8; //velocity of light in free space(m/s)
vc=2*10^8; //velocity of light in core(m/s)
thetac=60*%pi/180; //critical angle(radians)
//Calculations
n1=vf/vc; //core refractive index
n2=n1*sin(thetac); //cladding refractive index
NA=sqrt(n1^2-n2^2); //numerical aperture
//Result
printf("\n core refractive index is %0.3f ",n1)
printf("\n cladding refractive index is %0.1f ",n2)
printf("\n numerical aperture is %0.3f ",NA)
printf("\n answer for numerical aperture varies due to rounding off errors")
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