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diff --git a/3701/CH4/EX4.10/Ex4_10.sce b/3701/CH4/EX4.10/Ex4_10.sce
new file mode 100644
index 000000000..b47c68936
--- /dev/null
+++ b/3701/CH4/EX4.10/Ex4_10.sce
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+////Given
+V=100                                    //ev
+a=10                                     //degree
+n=1
+
+//Calculation
+//
+v=12.3/(sqrt(V))                   //De broglie wavelength
+d=v/(2*sin(a*3.14/180.0))
+n=(2*d)/v
+
+//Result
+printf("\n (a) Spacing between the crystal plane is  %0.2f A",d)
+printf("\n (b) Peaks in the interference pattern is  %0.2f ",n)
+printf("\n the largest possible value of n is 5")