The part of the electromagnetic spectrum in which Lyman series lies is:
Correct answer: C. Ultraviolet region
- A. Visible region
- B. Infrared region
- C. Ultraviolet region
- D. X-rays
Explanation
The Lyman series ends on n = 1, the largest energy drop of any hydrogen series, so its photons are the most energetic and shortest in wavelength. That places the whole series in the ultraviolet, while Balmer lies in the visible and Paschen in the infrared.
This question appeared on the ETEA MDCAT 2012 paper, which you can sit online with every answer explained.
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Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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