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diff --git a/2825/CH14/EX14.6/Ex14_6.sce b/2825/CH14/EX14.6/Ex14_6.sce
new file mode 100755
index 000000000..1d4d305c5
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+//Ex14_6 Pg-697
+clc
+
+n2=1.59 //cladding refractive index
+NA=0.2 //numerical apperture
+n0=1 //when fiber is in air
+
+n1=sqrt(n2^2+NA^2) //core refractive index
+printf("Core refractive index = %.3f \n",n1)
+
+n0=1.33 //water refractive index
+NA=sqrt(n1^2-n2^2)/n0 //numerical apperture
+printf(" Numerical apperture = %.2f \n",NA)
+
+AA_rad=asin(NA/n) //maximum Acceptance angle in rad
+AA=AA_rad*180/%pi //maximum entrance angle in degree
+printf(" The maximum entrance angle i0 = %.2f degree",AA)