Shortest wavelength associated to Paschen series is:
Correct answer: B. π=9/RH
- A. π=8/RH
- B. π=9/RH
- C. π=19/RH
- D. π=4/RH
Explanation
The Paschen series corresponds to electron transitions from higher energy levels down to the n=3 level. The shortest wavelength associated with this series occurs during the transition from n=4 to n=3, which can be calculated using the Rydberg formula. The correct formula for this transition is π=9/RH, where RH is the Rydberg constant. The other options are incorrect because they correspond to transitions that are not part of the Paschen series or suggest incorrect energy levels.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Atomic Spectra
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, hydrogenβs line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
Practise Atomic Spectra
356 free Atomic Spectra MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atomic Spectra questions
Which of the following is the longest wavelength of radiation for the Paschen series?
Which of following series lies in infra-red region?
Which X-ray photon will have the longest wavelength?
The ratio of longest wavelength to shortest of Lyman series is:
The series limit for the Balmer series of hydrogen spectrum occurs at 3664A. Calculate ionization energy of hydrogen atom.
The radius of third bohr orbit is: