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diff --git a/3717/CH2/EX2.5/Ex2_5.sce b/3717/CH2/EX2.5/Ex2_5.sce
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+// Ex2_5 Page:35 (2014)
+clc; clear;
+h = 6.626e-034; // Planck's constant, Js
+c = 3e+08;  // Speed of light, m/s
+m0 = 9.1e-031;  // Mass of the electron, kg
+lambda = 0.15e-09;  // Wavelength of the incident X-rays, m
+theta = zeros(3);   // Declare a row matrix for theta
+theta = [0, 90, 180];   // Scattering angles of photons, degree
+for i = 1:3
+    lambda_prime = lambda + h/(m0*c)*(1 - cosd(theta(i)));  // New wavelength due to Compton Shift, m
+    printf("\nThe wavelength of X-rays scattered at %d degrees = %5.3f nm", theta(i), lambda_prime/1e-09); 
+end
+
+// Result
+// The wavelength of X-rays scattered at 0 degrees = 0.150 nm
+// The wavelength of X-rays scattered at 90 degrees = 0.152 nm
+// The wavelength of X-rays scattered at 180 degrees = 0.155 nm 
+