Compare the two-slit interference pattern obtained with electrons (Figure 34.25) with the two-slit interference pattern obtained with light (Figure 34.8). If light and electrons exhibit a similar wave-particle duality, how might you modify the two-slit experiment with light shown in Figure 34.6 to observe light behaving like a particle?

Figure 34.25 When we perform two-slit diffraction with a very weak electron beam, we can see the pattern build up over time. At first (a, b), the dots that mark electron impacts seem to be scattered randomly, but as more accumulate (c, d), the diffraction pattern becomes evident. (a) (b) (c)