Java Physics

 

Diffraction

Diffraction of Wave (Opening)

 

 

Internal Links :

Same applet, larger size

Diffraction by an obstacle (Applet)

Bending of waves around a corner (Applet)

Run Applet Online

Download Executable Jar File

Html5 Version

 


narrow slit

When waves reach a narrow slit, the water in the slit vibrates like a point source. The waves thus sent out from secondary sources along the slit are nearly in-phase when arriving any point in the forward direction. The diffracted wave resembles a circular wave with centre at the slit.

wide slit

A wave spreads out (noticeable diffraction) when the size of the slit is comparable to or smaller than the wavelength.

 

 


  • The author (Chiu-king Ng) has the copyright on all the simulations in this website.
  • Email phyAA@phy.hk, where AA is the prime number following 7.
  • Last Update:2017-6-5