blob: 8aabd9f861a5ba2a99aaba04f61f765a0a6c064f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
// Scilab Code Ex5.1 :Page-167 (2013)
clc; clear;
N_A = 6.022e+23; // Avogdaro's No., per mole
n = 1; // Order of diffraction
M = 58.5; // Molecular mass of NaCl, g/mol
rho = 2.16; // Density of rock salt, g/cc
two_theta = 20; // Scattering angle, degree
theta = two_theta/2; // Diffraction angle, degree
N = N_A*rho*2/(M*1e-006); // Number of atoms per unit volume, per metre cube
d = (1/N)^(1/3); // Interplanar spacing of NaCl crystal, m
lambda = 2*d*sind(theta)/n ; // Wavelength of X-rays using Bragg's law, m
printf("\nThe wavelength of the incident X rays = %5.3f nm", lambda/1e-009);
// Result
// The wavelength of the incident X rays = 0.098 nm
|
