From the following transition for H-atom select the one which has the same wavelength as that of the fourth transition of Balmer series for `He^(+)` ion.

Calculate wavelength for 2^(nd) line of Balmer series of He^(+) ion

Wavelength of particular transition for H atom is 400 nm . What can be wavelength of He for same transition ?

The shortest wavelength of Balmer series of H-atom is

One of the lines in the emission spectrum of Li^(2 +) has the same wavelength as that of the second line of Balmer series in hydrogen spectrum. The electronic transition correspnding to this line is.

Which of the following transition in He^(+) ion will give rise to a spectral line which has the same wavelength as some spectral line in the hydrogen atom ?

What transition in the hydrogen spetrum would have the same wavelength as the balmer transition n = 4 to He^(o+) spectrum ?