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clear;
clc;
printf("\nEx1.16\n");
//page no.-26
//given
//For <111> planes
h=1;
k=1;
l=1;
n=1;.....//order
theta=30;......//angle in degrees
lambda=1.75;....//wavelength in angstrom
//we know d=a/sqrt((h^2)+(k^2)+(l^2))........distance between planes
//also by bragg's law 2*d*sind(theta)=n*lambda......put d values in this
a=(n*lambda*sqrt((h^2)+(k^2)+(l^2)))/(2*sind(theta))......//interatomic spacing in angstrom
printf("\nInteratomic spacing is 3.031 angstrom\n");
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