6c10.15: LASER DIFFRACTION - VARIABLE SINGLE SLIT

PURPOSE: To demonstrate single slit diffraction

DESCRIPTION: Position variable single slit in holder on cross-carriage in laser beam to obtain diffraction. Pattern can be shown on a distant screen, or the small screen shown in the picture. Magnification with the cylindrical lens can be used as necessary. Spread in the pattern as the slit is closed can easily be seen.

SUGGESTIONS:

EQUIPMENT: Optics track with a Laser and a variable single slit

SETUP TIME: 30 min.