An example of an absorption spectrum is the spectrum of:
Correct answer: B. Atomic hydrogen
- A. Sodium vapour
- B. Atomic hydrogen
- C. Molten iron
- D. Mercury vapour lamp
Explanation
Absorption spectrum is a type of spectrum in which electron absorbs energy from a source to go from lower energy level to higher energy level. For example, In Hydrogen spectrum, electron absorbs energy to jump from low energy level to high energy level and the spectrum obtained is called absorption spectrum.
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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.
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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:
Balmer series lies in that region of electromagnetic wave spectrum, which is known as:
Balmer series was identified in: