Which of the following experiments most directly supports de Broglie's hypothesis of the wave nature of matter?

Question

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Electron diffraction by a crystal is the experiment that directly supports de Broglie's hypothesis of the wave nature of matter. In this experiment, a beam of electrons is directed at a crystal, and the resulting diffraction pattern is similar to the diffraction of waves. This indicates that electrons have wave-like properties, as predicted by de Broglie's hypothesis.

Which of the Following Experiments Most Directly Supports De Broglie's