Number of spectral lines in hydrogen atom is

Number of spectral line in hydrogen atom is .

The number of spectral lines in hydrogen atom are

The wave number of a spectral line of hydrogen atom is equal to 8 / 9 times the Rydberg's constant. The line is

Explain the different series of spectral lines in hydrogen atom.

What is the formula to calculate barv ( wave number) of spectral lines in hydrogen?

What is the number of spectral line in a hydrogen spectrum ?

The longest wavelength transitoin in one of the spectral series of hydrogen atom is 6563 Å. Identify the series to which the spectral line belongs.