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VIEWING A SHOWCASE BULB THROUGH SINGLE AND DOUBLE SLITS









EQUIPMENT
    redball.gif (326 bytes) Showcase Lamp
    redball.gif (326 bytes) Diffraction gratings
  



NARRATIVE
            A class may view single slit diffraction by viewing a showcase bulb through two fingers brought close together. There is also a number of diffraction gratings which may be distributed to the class for viewing the showcase bulb.