|Sep24-10, 02:13 PM||#1|
Physical meaning of parts of electromagnetic wave
E = E_0exp i(k dot r - wt) or E = cos(k dot r - wt)
what does k dot r physically represent? Can r be any position in space or must it lie on the wave?
(I physically understand what a dot product is)
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|Sep24-10, 03:06 PM||#2|
That's a plane wave, it occupies all of space.
If you want a beam that is localized along a line, E_0 has to be a function of distance from the line.
|Sep24-10, 05:19 PM||#3|
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