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r=5*10^-15; //say r=∆x
h=1.055;
c=3*10^8;
m0=9.1;
disp("∆p >= h/(4*pi*∆x)");
a=h/(2*r);
b=a*(10^-14);
printf('\n The uncertainity in momentum is %f *(10^-20) kg m/s',b);
d=0.511;
e=1.6;
f=d*e;
printf('\n The rest mass enrgy of electron is %f*(10^-13) J',f);
g=b*c;
k=g*10^-8;
printf('\n The value of ∆p*c is %f*(10^-12) J',k);
disp("E=sqrt((m0*c^2)^2+(p*c)^2)");
disp("Emin=3.165*10^-12");
i=3.165*(10^-12)/(1.6*(10^-19)*10^6);
printf('\n The value of Emin in Mev is %f',i);
j=5.3;
l=h/(2*j);
m=l*10^2;
printf('\n The uncertainity in momentum is when %f *(10^-23) kg m/s',m);
n=(m^2)/(2*m0);
printf('\n The value of kinetic energy is %f*(10^-19) J',n);
o=n/1.6;
printf('\n The value of kinetic energy in eV is %f eV',o);
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