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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
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