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clear;
clc;
printf("\nEx1.8\n");
//page no.-11
//given
rho=7870;.........//densitynof alpha iron in kg/m^3
N=6.02*10^26;.....//avagadro no.
n=2;..............//number of molecules per unit cell for B.C.C.
M=55.8;..........//atomic weight
a=((n*M)/(N*rho))^(1/3).........//lattice constant in metre
printf("\nlattice constant is 2.86 Angstrom\n");
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