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PURPOSE: Diffraction of a laser beam by a sharp edge.
DESCRIPTION: Position the razor edge in the laser beam using the double cross carriage to see the classic knife edge diffraction pattern on a distant screen. The pattern can be seen on a near screen using a cylindrical lens. The lens may enhance the pattern on the distant screen.
SUGGESTIONS:
REFERENCES: None. (PIRA 6C20.15)
EQUIPMENT: Laser cart with razor edge insert on double cross carriage.
SETUP TIME: 10 minutes.
