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Is there ever a negative frequency

Posted: Tue Oct 23, 2018 10:27 pm
by charlotte_jacobs_4I
For Rydberg's equation should the answer ever be negative? What if you go from n=4 to n=2 or n=3 to n=5?

Re: Is there ever a negative frequency

Posted: Tue Oct 23, 2018 11:54 pm
by skyeblee2F
There is no such thing as a negative wavelength or frequency. The negative sign you may calculate using Rydberg's equation is simply a representation of energy being either released or emitted and can be ignored in terms of frequency. Going from n=4 to n=2 emits energy, so the equation yields a negative answer. But, again, you can ignore this if you are trying to calculate frequency or wavelength.