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clear;
clc;
printf("\nEx-6.26\n");
//page no.-195
//given
E=2.1;........//fermi energy in eV
e=1.6*10^-19;.......//charge
m=9.11*10^-31;......//mass of e
v=((2*E*e)/m)^(1/2)........//fermi velocity in m/s
printf("\nfermi velocity is 8.6*10^5 m/s");
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