Propagation of spherical wavefront from a point source

[LeeTl]

This is to illustrate why intensity of a position is inversely proportional to the square of the distance of the position from the source.

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<applet code='users.sgeducation.LTL.point_source_wavefront_LTL_pkg.point_source_wavefront_LTLApplet.class' archive='http://www.phy.ntnu.edu.tw/ntnujava/ejsuser/5284/ejs_point_source_wavefront_LTL.jar' name='point_source_wavefront_LTL9985' id='point_source_wavefront_LTL9985' width='448' height='447' mayscript=true><param name='draggable' value='true'></applet>
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<a href='http://www.phy.ntnu.edu.tw/ntnujava/msg.php?smfejs=9985' target='smfejs'>Run simulation</a>

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[jhon cena]

Excellent post, one of the few articles I’ve read today that said something unique! One new subscriber here -*-