1 files changed, 20 insertions, 0 deletions
diff --git a/3869/CH7/EX7.5/Ex7_5.sce b/3869/CH7/EX7.5/Ex7_5.sce
new file mode 100644
index 000000000..325da08f4
--- /dev/null
+++ b/3869/CH7/EX7.5/Ex7_5.sce
@@ -0,0 +1,20 @@
+clear
+//
+//
+//
+
+//Variable declaration
+theta1=(8+(35/60))*%pi/180     //glancing angle(radian)
+lamda=0.842        //wavelength of X-rays(angstrom)
+n1=1               //order
+n2=3               //order 
+
+//Calculation
+x=n2*lamda*sin(theta1)/(n1*lamda)                     
+theta2=asin(x)*180/%pi           //glancing angle
+theta2d=int(theta2)                      //glancing angle(degrees)
+theta2m=(theta2-theta2d)*60              //glancing angle(minutes)
+
+//Result
+printf("\n glancing angle is %0.3f degrees %0.3f minutes",theta2d,theta2m)
+printf("\n answer for glancing angle in minutes given in the book is wrong")