In ground state of `He^(oplus)` ion how much energy is supplied to electron so that second line of balmer series is obtained in its spectrum `:-`

The frequency of second line of Balmer series in spectrum of Li^(​+2) ​ ion is :-

The energy corresponding to second line of Balmer series for hydrogen atom will be:

The energy corresponding to second line of Balmer series for hydrogen atom will be :-

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

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

Energy of electron moving in the second orbit of He^(+) ion 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.

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 electronic transitionn corresponds to the third line in the Balmer series of the hydrogen spectrum?