Spectral Series

The wavelength of the first line of Lyman series for the hydrogen atom is equal to that of the second line of Balmer series for a hydrogen-like ion. The atomic number of hydrogen-like ion is:
1.
2.
3.
4.

Electron in hydrogen atom first jumps from the third excited state to the second excited state and then from the second excited to the first excited state. The ratio of the wavelengths emitted in the two cases is:
1.
2.
3.
4.

The ratio of the longest wavelengths corresponding to the Lyman and Balmer series in the hydrogen spectrum is:

1.		2.
3.		4.

In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series is:

1.		2.
3.		4.

The ratio of wavelengths of the last line of the Balmer series and the last line of the Lyman series is:
1.
2.
3.
4.

In hydrogen spectrum, the shortest wavelength in the Balmer series is . The shortest wavelength in the Bracket series is:
1.
2.
3.
4.