clc
clear
disp('Ex-4.6')
printf('The uncertainity in the poisition of electron after it passes through the slit is reduced to width of the slit\n delx=a\n');
printf('The uncertainity in momentum = h/a\n');
printf('Position of landing(angle t) = sin t = tan t = delz/dely =(h/a)/2*pi*a= w/2*pi*a  \nwhere w=wavelenghth\n');
printf('Rewriting  the above expression a*sint = w/(2*pi)\n which is similar to a*sint = w  (neglect 2*pi)as found out by first minimum in diffraction by a slit of width a');
disp('It proves a close connection between wave behaviour and uncertainity principle');