Doppler Effect

Android app on Google Play
Android Apps

Applet shows a moving source emitting waves. The black circles can be imagined to represent crests and the gray circles can be imagined to be troughs. The related applet link opens a new frame in which the change in wavelength in front and at the back of the source is shown. Wave advancing from a stationary source is also shown for reference. 

Click here for details of a CD of these applets

Surendranath .B.