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Unformatted text preview: f 5 hCp://www.kirksville.k12.mo.us/khs/teacher_web/alterna0ve/diffrac0onfig1.gif hCp://upload.wikimedia.org/ wikipedia/commons/0/0f/ Huygens_Fresnel_Principle.gif Wide ­slit diffrac0on: Proper0es of Waves •  Diffrac-on (cont’d) hCp://upload.wikimedia.org/ wikipedia/commons/b/b8/ Wavelength%3Dslitwidth.gif Narrow ­slit diffrac0on: hCp://www.youtube.com/watch?v=ZSF9CFsjQKg hCp://upload.wikimedia.org/wikipedia/commons/b/bb/Water_ripples_Diffrac0on.png 6 Proper0es of Waves •  Interference Superposi0on of waves: Reinforcement/cancella0on of waves. When peaks/troughs meet with peaks/ troughs, the resultant wave’s amplitude will be larger (i.e., construc0ve interference). When peaks meet with troughs, the resultant wave will be flaCened (i.e., destruc0ve interference). Construc-ve interference hCp://www.daviddarling.info/images/interference_water_waves.jpg (the two waves are in phase): hCp://www.acs.psu.edu/drussell/Demos/superposi0on/interference.gif D...
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