01:160:163 Lecture Notes - Lecture 1: Double-Slit Experiment, Diffraction, Photon
2 Oct 2017
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Period (time between each wave cycle: 1 , wavelength and frequency are inproportionate to each other. If you have one, you can find the other. Wave particle duality notes: you(cid:374)g"s 2-slit experiment: light (electromagnetic waves) was shined through 2 slits and it demonstrated wave-like behavior. However, when experimenter observed it, demonstrated particle-like behavior: wave-like behavior: interference patterns, diffraction (bending around slits) Constructive interference: 2 waves of equal amplitude are in phase, or their crests overlap. The amplitude doubles as a result: destructive interference: 2 waves are not in phase, the crest meets a trough and vice-(cid:448)e(cid:396)sa. Both (cid:449)a(cid:448)es (cid:862)(cid:272)a(cid:374)(cid:272)el out(cid:863: both types of interference allow for interference patterns, light"s pa(cid:396)ti(cid:272)le-type behavior, the photoelectric effect (albert einstein, when light is shined on certain metals, electrons are released. Classical electromagnetic theory attributes this to the transfer of energy from the light to the electron: if correct, would mean that energy of light would have to exceed binding energy of the electron.
