What is the nature of hydrogen spectra?

State the drawbacks of Rutherford Model. What is the nature of atomic spectra as per Bohr model.

(1) What is meant by line spectra of atom ? (2) How many lines are observed in the visible region of hydrogen spectrum?

The ratio of the largest to shortest wavelength in Balmer series of hydrogen spectra is,

The ratio of the largest to shortest wavelength in Balmer series of hydrogen spectra is,

Which model successfully explained fine line structure of hydrogen atomic spectra?

Which series of hydrogen spectra lies in the visible region?

The ratio of the largest to shortest wavelengths in Balmer series of hydrogen spectra is :