Question

Which series of line of hydrogen spectrum lie in visible region?

Answer 1

Four

Four of the Balmer lines are in the technically "visible" part of the spectrum, with wavelengths longer than 400 nm and shorter than 700 nm. Parts of the Balmer series can be seen in the solar spectrum. H-alpha is an important line used in astronomy to detect the presence of hydrogen.

Answer 2

Balmer series lies in the visible region of electromagnetic spectrum.

Explanation:

• The Balmer series is the name given to a series of spectral emission lines of the hydrogen atom that result from an electron transition from a higher level to an energy level with the dominant quantum number 2.
• In nuclear physics the Balmer series, or Balmer lines, is one of six named series describing the spectral line emission of a hydrogen atom.
• The Balmer series is calculated using the Balmer formula, an empirical equation discovered by Johann Balmer in 1885.
• The wavelengths of these lines are given by 1/λ = $R_{H}$ (1/4 − 1/$n^{2}$), where λ is the wavelength, $R_{H}$ is the Rydberg constant, and n is the level of the original orbital.