Java Physics



Polarizer 2

  • Polarizer is a device which transmits only the component of polariztion parallel to its transmission axis. By using a polarizer, the plane of a plane-polarized wave can be changed; a circularly polarized or unpolarized light can be changed to plane-polarized.
  • When a circularly or unpolarized wave (natural light) is incident on a polarizer of whatever the orientation of transmission axis, the wave intensity passing through is always one-half of the incident one (after averaging over many random changes in the case of unpolarized wave).
  • No light can pass through two polarizers whose transmission axes are crossed perpendicularly.
    However, when a third polarizer is inserted between them with an angle not parallel to either of them, some light can finally pass through.



Internal Link :

Polarizers 1 (Applet)

Run Applet Online

Run on Java-enabled web browsers by adding the URL in the Exception Site List in your
Java Control Panel settings. But, whenever you do this, you must ensure the site is safe.
(Web Safety Checker: Scamadviser, Norton, Sucuri, Google).

Download Executable Jar File

Run outside of the browser by pressing 'Enter' or double-clicking the Jar file




Author and Copyright:

Chiu-king Ng

Feedback/Contact:, where XY is the prime number following 23

Mirror Site:

Last Update:


Java logo