1 files changed, 17 insertions, 0 deletions
diff --git a/3717/CH10/EX10.11/Ex10_11.sce b/3717/CH10/EX10.11/Ex10_11.sce
new file mode 100644
index 000000000..109c22fd1
--- /dev/null
+++ b/3717/CH10/EX10.11/Ex10_11.sce
@@ -0,0 +1,17 @@
+// Ex10_11  Page:221 (2014)
+clc;clear;
+h = 6.626e-034;    // Planck's constant, Js
+e = 1.6e-019;    // Charge on an electron, C
+m = 9.1e-031;    // Mass of an electron, kg
+V = 120;    // Accelerating potential, volt
+theta = 22;    // The angle at which the reflection maximum is observed, degree
+lambda = h/sqrt(2*m*e*V);    // Wavelength of a moving electron, m
+h = 1, k = 1, l = 1;    // Miller indices of planes from which the reflection occurs
+n = 1;    // Order of diffraction
+d_111 = n*lambda/(2*sind(theta)*1e-010);    // Interplanar spacing between (1 1 1) planes, m
+a = sqrt(3)*d_111;    // Lattice parameter, m
+printf("\nThe lattice parameter = %5.3f angstrom", a);
+
+// Result
+// The lattice parameter = 2.591 angstrom 
+// The answers vary due to round off error
+\ No newline at end of file