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+// Scilab Code Ex8.7 Calculation of wavelengths of tin and barium using Moseley's law Page-257 (2010)
+Z_Fe = 26;    // Atomic number of iron
+Z_Pt = 78;    // Atomic number of platinum
+Z_Sn = 50;    // Atomic number of tin
+Z_Ba = 56;    // Atomic number of barium
+b = 1;    // Mosley's constant for K-series
+lambda_Fe = 1.93e-010;    // Wavelength of K_alpha line of Fe
+lambda_Pt = 0.19e-010;    // Wavelength of K_alpha line of Pt
+// From Moseley's Law,
+// f = a*(Z-1)^2. This implies lambda  = C*1/(Z-1)^2
+// so that lambda_Fe  = C*1/(Z_Fe-1)^2 and lambda_Sn  = C*1/(Z_Sn-1)^2
+// Dividing lambda_Sn by lambda_Fe and solving for lambda_Sn
+lambda_Sn = (Z_Fe-1)^2/(Z_Sn-1)^2*lambda_Fe;    // Wavelength of K_alpha line for tin, m
+lambda_Ba = (Z_Pt-1)^2/(Z_Ba-1)^2*lambda_Pt;    // Wavelength of K_alpha line for barium, m
+printf("\nThe wavelengths of tin and barium = %3.1f angstrom and %4.2f angstrom respectively", lambda_Sn/1D-10, lambda_Ba/1D-10); 
+// Result
+// The wavelengths of tin and barium = 0.5 angstrom and 0.37 angstrom respectively
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