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Unformatted text preview: Diffraction effects are pronounced whenever a (width of aperture) Question : why can you hear around a corner but not see around a corner?? Single-Slit Diffraction central max. a sin = , 2 , 3 , dark fringes only Gratings color separators 0) Reflection demo : CD 0) Refraction demo : laser amazer goggles Refraction grating condition d sin = 0, , 2 , 3 , maxima only Gratings are rated by their # of slits per cm, N . Suppose you have 5000 slits/cm, then d = 1/ N = 210 4 cm = 2 m....
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