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clear;
clc;
printf("\nEx1.24\n");
//page no.-34
//given
n=3;.....................//order
lambda=0.79*10^-10;......//wavelength in m
d=3.04*10^-10;..........//spacing in m
//from bragg's law
theta=asind((n*lambda)/(2*d))..........//angle in degrees
printf("\nangle is 22.942 degrees\n");
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