Group Velocity

One of Fowler's Physics Applets

This very simple Java applet shows two interfering sine waves. The user can change the relative frequencies in order to see the difference between phase and group velocity.

Author:Drew Dolgert
Owner and contact:Michael Fowler
Date:August 1999
Version:1.0.1
Distribution:Gnu Public License, How to link to the applet
Language:Java 1.0.2

We would like to thank Vitaliy Mikhailovskiy for suggesting improvements in the code, giving a smoother presentation.

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Also available on our FTP Site.

Version History

1.0.1 August 1999 by Vitaliy Mikhailovskiy
Fixed movement of waveform when group velocity changes.
Limited precision of textfield to six digits.
Amended main() so applet works without a viewer.
1.0 March 1997
Applet rewritten by Andrew Dolgert. Originally by Michael Fowler.

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