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	<title>Talk:Propagation, Reflection and Refraction - Revision history</title>
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	<updated>2026-04-23T20:48:30Z</updated>
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		<title>Cmditradmin: New page: Vectors- there seems to be some confusion about using vectors with lambda please help sort this out.  One thing I noticed going through the basics of light is that wavelength is defined as...</title>
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		<updated>2009-10-05T16:24:37Z</updated>

		<summary type="html">&lt;p&gt;New page: Vectors- there seems to be some confusion about using vectors with lambda please help sort this out.  One thing I noticed going through the basics of light is that wavelength is defined as...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Vectors- there seems to be some confusion about using vectors with lambda please help sort this out.&lt;br /&gt;
&lt;br /&gt;
One thing I noticed going through the basics of light is that wavelength is defined as a vectorial quantity. This is wrong it is a scalar. Wave vector is a vector and its magnitude (a scalar) relates to the wavelength as indicated. &lt;br /&gt;
It is just plain math basics and is wrong, vectors can not be divided, only their moduli can.&lt;br /&gt;
Jean-Luc would be horrified by this himself and probably does not remember writing this. &lt;br /&gt;
&lt;br /&gt;
Bernard Kippelin 9/29&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
There is a need for vectors on &amp;quot;c&amp;quot; and on all &amp;quot;lambdas&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Also, all &amp;quot;n&amp;quot; and &amp;quot;v&amp;quot; should be replaced with the greek letter &amp;quot;nu&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Jean Luc 10/3&lt;/div&gt;</summary>
		<author><name>Cmditradmin</name></author>
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