What is the fine structure of spectral lines?

Fine structure, in spectroscopy, the splitting of the main spectral lines of an atom into two or more components, each representing a slightly different wavelength. Fine structure is produced when an atom emits light in making the transition from one energy state to another.

What is H-alpha line in spectrum?

H-alpha (Hα) is a specific deep-red visible spectral line in the Balmer series with a wavelength of 656.28 nm in air; it occurs when a hydrogen electron falls from its third to second lowest energy level. H-alpha light is the brightest hydrogen line in the visible spectral range.

Why is fine-structure constant important?

The fine-structure constant determines the strength of the electromagnetic force, and is central in explaining a number of phenomena including the interactions between light and charged elementary particles such as electrons.

What wavelength is H alpha?

656.3 nm
H Alpha. H alpha: The first atomic transition in the hydrogen Balmer series; wavelength = 656.3 nm. This absorption line of neutral hydrogen falls in the red part of the visible spectrum and is convenient for solar observations.

What is meant by fine spectrum?

The fine spectrum is defined as the splitting of spectrum into closely spaced lines. This is observed when H atom is placed in Electrical or Magnetic field.

How is the fine structure of hydrogen determined?

Hydrogen Fine Structure. The familiar red H-alpha line of hydrogen is a single line according to the Bohr theory. The straight application of the Schrodinger equation to the hydrogen atom gives the same result.

What is the structure of the fine spectrum?

Fine Spectrum The fine structure of the spectral line describes the splitting of spectral lines due to the electron spin and the relativistic correction to the total energy of the hydrogen atom electron.

Why is the spectral line of hydrogen split?

The small splitting of the spectral line is attributed to an interaction between the electron spin S and the orbital angular momentum L. It is called the spin-orbit interaction . The familiar red H-alpha line of hydrogen is a single line according to the Bohr theory.

Which is a single line of hydrogen according to Bohr theory?

The familiar red H-alpha line of hydrogen is a single line according to the Bohr theory. The straight application of the Schrodinger equation to the hydrogen atom gives the same result.