3840/CH11/EX11.4/Ex11_4.sce


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clear
//
//
//

//Variable declaration
n1=1.55          //Core refractive index
n2=1.50          //Cladding refractive index

//Calculation
NA=sqrt(n1**2-n2**2)    //numerical aperture

//Result
printf("\n numerical aperture is %0.4f  ",NA)