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In figure 1.19 on page 15 of the textbook an illustration depicting an experiment is shown. Waves of electromagnetic radiation are shot at a screen and pass through a pair of closely spaced slits, and as a result circular waves are generated on the other side of the screen. This figure is used to demonstrate that light has wave-like properties but I am confused as to how these circular waves are generated, and why that proves lights wavelike properties.
To the best of my knowledge the light generating the waves is like water if you think about it. Like when we skip stones on a pond or something how waves are generated on the waters surface. Like that, when the light passes through the slits it is restricted to the slit space (small) for a second and then expands when there is more room, creating the waves. The waves then interest with each other through constructive and destructive interference which creates a smaller or larger wave. This interaction and how they look after they pass the slits shows they have wave-like properties. Not sure if this helped that much but hopefully it is something to work off of!
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