London Low Emission Zone - Feasiblility Study

Briefly, what is a continuous spectrum, an emission spectrum and an absorption spectrum?

continuous, it has output at every frequency over a band.

emission, the output is on a small set of discrete fixed frequencies

absorption, is the same as continuous except that there are a small set of discrete fixed frequencies at which there is not output.

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One Response

1. billrussell42 Says:
   November 22nd, 2009 at 10:52 am

   continuous, it has output at every frequency over a band.

   emission, the output is on a small set of discrete fixed frequencies

   absorption, is the same as continuous except that there are a small set of discrete fixed frequencies at which there is not output.

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   References :

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