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+clear;
+clc;
+printf("\nEx2.22\n");
+//page no.-66
+//given
+del_x=5*10^-14;...............//uncertainty in position in m
+h=6.626*10^-34;...............//planck's constant in jouls-sec
+m=1.675*10^-27;...............//mass of neutron
+e=1.6*10^-19;.................//cxharge
+
+del_p=h/del_x...............//uncertainty in momentum in kg*m/sec
+
+E=del_p^2/(2*m*e)..............//kinetic energy in meV
+
+printf("\nminimum Kinetic energy is 0.33 meV\n");