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// Scilab code: Ex3.24 : Unertainity in the position of an electron:Pg: 94 (2008)
m = 9.1e-31; // Mass of an electron, kg
v = 300; // Speed of electron, m/s
h_bar = 6.6e-034; // Reduced Plancks constant, joule second
p = m*v; // Momentum of electron, kgm/s
del_p = 1e-04*p; // Minimum uncertainity in momentum, kgm/s
del_x = h_bar/(4*%pi*del_p); // Uncertainity in position, m
printf("\nThe uncertainity in the position of the electron = %5.3f mm", del_x/1e-03);
// Result
// The uncertainity in the position of the electron = 1.924 mm
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