Part 4/8:
As the distance from the source increases, fewer channels intersect the surface of a metal and thereby contribute to electron ejection. However, the energy of the photoelectrons is solely contingent upon the energy delivered by an individual channel, rather than the collective intensity of channels impacting the surface. This means that even at greater distances, a well-aimed channel can still impart sufficient energy to eject an electron, thus maintaining constant energy for the photoelectrons.