Hi. I'm having some trouble calculating the wavelength for series limit for the Paschen series.(adsbygoogle = window.adsbygoogle || []).push({});

I've set the Rydberg equation up with 1/(n sub f squared) as 1/(3 squared), but I'm not sure what goes in for 1/(n sub i squared) as the initial position.

I'd appreciate any help. Thanks!

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# Homework Help: Calculating the wavelength for series limit for the Paschen series

**Physics Forums | Science Articles, Homework Help, Discussion**