In which region of electromagnetic spectrum
does the Lyman series of hydrogen atom lie:
(a) ultraviolet (b) infrared
(c) visible (d) X-ray
Answers
Answer: The correct answer is option (a) Ultraviolet Region.
Explanation:
1) Lyman series of hydrogen atom lies in the ultraviolet region,
2) Balmer series lies in visible region,
3) Paschen series lies in near infrared region
4) Bracket, Pfund as well as Humphrey series lie in far infrared region of electromagnetic spectrum.
Extra Information:
In physics and chemistry, the Lyman series is a hydrogen spectral series of transitions and resulting ultraviolet emission lines of the hydrogen atom as an electron goes from n ≥ 2 to n = 1 (where n is the principal quantum number), the lowest energy level of the electron. The transitions are named sequentially by Greek letters: from n = 2 to n = 1 is called Lyman-alpha, 3 to 1 is Lyman-beta, 4 to 1 is Lyman-gamma, and so on. The series is named after its discoverer, Theodore Lyman. The greater the difference in the principal quantum numbers, the higher the energy of the electromagnetic emission.