1 files changed, 19 insertions, 0 deletions
diff --git a/3869/CH7/EX7.11/Ex7_11.sce b/3869/CH7/EX7.11/Ex7_11.sce
new file mode 100644
index 000000000..57250e6c2
--- /dev/null
+++ b/3869/CH7/EX7.11/Ex7_11.sce
@@ -0,0 +1,19 @@
+clear
+//
+//
+//
+
+//Variable declaration
+h=1
+k=1
+l=1
+lamda=1.54         //wavelength(angstrom)
+n=1                        //order
+theta=19.2*%pi/180     //glancing angle(radian)
+
+//Calculation
+d=n*lamda/(2*sin(theta))     
+a=d*sqrt(h**2+k**2+l**2)     //cube edge of unit cell(angstrom)
+
+//Result
+printf("\n cube edge of unit cell is %0.3f  angstrom",a)