Physics Dept. Demonstration Manual

DOP 08.2 - Polarization

Objective:

To show the action of polarizer and analyzer.

 
Apparatus:  
  • Wrinkled Mylar sheet
  • Motor driven polarized disc
  • Clamp, stand
  • Stationary disc
  • Wood spacers (heat reduction)

Method:

For demonstrating polarized light, the motor-driven disc is inserted in the beam of an overhead projector. Wood spacers and a polarizing disc are laid on the overhead projector. Samples can be continuously analyzed at all polarization angles.

Note:

Wiping or scratching the polarized discs leaves very fine scratches, resulting in random polarization. Also, handle and rotate the discs by the metal edge only.