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clear;
clc;
printf("\nEx2.18\n");
//page no.-65
//given
del_x=4*10^-10;...............//uncertainty in position of electron
h=6.6*10^-34;................//planck's constant

del_p=h/del_x................//uncertainty in momentum in kg*m/sec

printf("\nuncertainty in momentum is 1.6*10^-24 kg*m/sec\n");