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clear
//
//
//
//Variable declaration
NA=0.40; //numerical aperture
delta=1/100; //relative difference
//Calculations
i0=asin(NA); //acceptance angle(radians)
i0=i0*180/%pi ; //acceptance angle(degrees)
N=1-delta;
thetac=asin(N); //critical angle(radians)
thetac=thetac*180/%pi ; //critical angle(degrees)
//Result
printf("\n acceptance angle is %0.1f degrees",i0)
printf("\n critical angle is %0.1f degrees",thetac)
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