Imagine you are conducting an experiment similar to the double-slit experiment with electrons. You notice that when electrons pass through the slits, they create an interference pattern on a detector screen. How does this observation relate to the wave-like behavior of electrons?

When electrons go through the two slits, each electron behaves like a wave that spreads out and overlaps with itself from both slits, just as light waves do. The overlapping waves interfere, producing bright and dark bands on the detector screen where the waves add or cancel. This pattern shows that the electrons are not just particles but also have wave properties, because only waves can create such constructive and destructive interference. A simple example is a drop of water on a pond: the ripples from two points overlap to form a pattern of peaks and troughs, similar to how electron waves form bright and dark lines. Thus, the interference pattern proves that electrons have wave‑like behavior.