No. of visible lines when an electron returns from `5^(th)` orbit up to ground state in `H`spectrum :

Number of visible lines when an electron returns from 5th orbit to ground state in H spectrum :

The number of spectral lines obtained in Bohr spectrum of hydrogen atom when an electron is excited from 5^("th") orbit to ground level is:

The number of spectral lines obtained in Bohr spectrum of hydrogen atom when an electron is excited from 5^("th") orbit to ground level is:

Total number of spectral lines when electron jumps from 8^(th) orbit to 2^(nd) orbit

The number of spectral lines produced when an electron jumps from 5^(th) orbit to 2^(nd) orbit in the hydrogen atom is.

The number of spectral lines produced when an electron jumps from 5^(th) orbit to 2^(nd) orbit in the hydrogen atom is.

The number of possible lines of Paschenc series when electron jumps from 7^(th) excited state to ground state ( in hydrogen like atom ) is :

The number of possible lines of Paschenc series when electron jumps from 7^(th) excited state to ground state ( in hydrogen like atom ) is :