Wavenumber?
In message , Jeff writes
I was digging around for the formula for a travelling wave
and encountered cos(kx-wt), where k is the wave number and
w the radians/sec, which thinking further means that k HAS to
be radians per metre and not cycles per metre.
Even a small amount of investigation will show that wave-number when
expressed in radians use the symbol k, and when expressed in
wavelength uses the symbol nu-bar 0 or a tilde above it).
Jeff
Nu (without the tiddly) is c/lambda as in E=h x nu photon energy
Damn physicists.
Brian
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Brian Howie
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