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+// Scilab Code Ex6.11 : Maximum order of diffraction: Page-138 (2010)

+d = 0.31e-009;    // Interplanar spacing, m

+n = 1;    // First Order of diffraction 

+theta = 9.25;    // Glancing angle at which Bragg's reflection occurs, degrees

+// From Bragg's Law, n*lambda = 2*d*sind(theta), solving for lambda

+lambda = 2*d*sind(theta)/n;    // Wavelength of X-rays, m (Bragg's Law)

+theta_max = 90;    // Maximum possible angle at which reflection can occur, degrees

+n = 2*d*sind(theta_max)/lambda;    // Maximum possible order of diffraction

+printf("\nThe Maximum possible order of diffraction = %1d",n);

+

+// Result

+// The Maximum possible order of diffraction = 6 
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