PURPOSE: To show that the reflected ray from a corner reflector is parallel to the incoming ray.

DESCRIPTION: A corner reflector mounted on a rotator is positioned in a laser beam. As the corner reflector rotates the beam moves around on the white screen through which the beam from the laser emerges.

SUGGESTIONS:

REFERENCES: (PIRA unknown.)

EQUIPMENT: Laser with white screen and corner reflector mounted on rotator.

SETUP TIME: 5 min.