ABSTRACT Based on Young's double‐slit experiment, the diffraction of light has been recognised as an exclusive property of the wave nature of light. However, if a mass (e.g., steel bead) is incident with light, three distinct characteristic diffraction patterns (i.e., concentric circles, dots, and sawteeth) are observed in the slits as well as in the mass. This study examined each case of distinct direct/indirect collisions between light and the steel bead, and all cases were geometrically interpreted for intuitive understanding.
Na et al. (Thu,) studied this question.