How to convert length units to inverse cm

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agentas
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how to convert length units to inverse cm.For example arngstroms,nanometers to cm^-1.Thanks
 
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Please elaborate what you are trying to do.

In general - you can't, as one is a length unit, other is a spatial frequency unit. Different things.
 
Borek said:
Please elaborate what you are trying to do.

In general - you can't, as one is a length unit, other is a spatial frequency unit. Different things.

i want to use it with Fabry-Perot interferometer
 
Well, you could have barns per centimer, or something like that. Not sure why you'd want it, but you cold.