On hydrogen atom spectrum, series of spectral lines which lie within visible region is:
Correct answer: B. Balmer series
- A. Lyman series
- B. Balmer series
- C. Paschen series
- D. Brackett series
- E. Pfund series
Explanation
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.
Last updated
About Spectrum of Hydrogen
The hydrogen spectrum consists of discrete emission lines produced when electrons fall between quantised energy levels and release photons. Questions use the Rydberg equation, photon energy and wavelength, and identify the Lyman, Balmer, Paschen, Brackett and Pfund series, which differ from continuous spectra.
Practise Atomic Structure
922 free Atomic Structure MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
According to Bohr's theory of the Hydrogen atom, only those atomic orbits with radii 'r' and atomic shell 'n' around the nucleus are allowed which have the angular moments:
According to Bohr theory only those orbit are allowed along which angular momentum of electron is:
An electron in a hydrogen atom makes a transition from an energy level with energy E1, to one with energy E2 and simultaneously emits a photon. The wavelength of the emitted photon is:
An example of an absorption spectrum is the spectrum of:
Balmer series lies in that region of electromagnetic wave spectrum, which is known as: