Consider an experiment in which a beam of electrons is directed at a plate containing two slits, labelled A and B. Beyond the plate is a screen equipped with an array of detectors which enables one to determine where the electrons hit the screen. For each of the following cases draw a rough graph of the relative number of incident electrons as a function of position along the screen and give a brief explanation. (d) tern-Gerlach apparatus attached to the slits in such a manner that only electrons with s,=h/2can pass through A and only electrons with s,=-h/2 can pass through B. (e) Only electrons with s, = h/2 can pass through A and only electrons with s,= R/2 can pass through B. Sz What is the effect of making the beam intensity so low that only one electron is passing through the apparatus at any time?