where is an normalized eigenfunction of the Hamiltonian
with eigenvalue , and an eigenfunction with eigenvalue .
Suppose that the energy of the particle is now measured and found to
be . What is the wave function now, as accurately as you can
tell?
2
Suppose that the energy measurement is now repeated. What is
the result of that measurement?
3
Now a very accurate position measurement of the particle is
made. What can you say that qualitatively will happen to the wave
function?