Calculate the shortest wavelength of visible light (in nanometers) seen in the spectrum of the hydrogen atom.

nm
What are the principle quantum numbers for the levels in this transition?

1 answer

It depends somewhat on what you call the visible spectrum. I think most texts use 400 nm to about 700 nm but I have seen some references that list 390 nm to 750 nm as detectable by the human eye. Here is a site that lists the wavelengths of the Balmer Series. Take your pick (and it shows the principle quantum numbers involved).
http://hyperphysics.phy-astr.gsu.edu/hbase/tables/hydspec.html