| ⇦ |
| ⇨ |
The ratio of minimum wavelengths of Lyman and Balmer series will be
Options
(a) 5
(b) 10
(c) 1.25
(d) 0.25
Correct Answer:
0.25
Explanation:
Minimum wavelength is for higher energy n = 1 → n = ∞, energy = E₀.
n = 2 → n = ∞, energy = E₀/4.
.·. Balmer line has 4 times the wavelength.
.·. Ratio of minimum wavelength is (1/4) = 0.25
Related Questions: - If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- If Q, E and W denote respectively the heat added, change in internal energy
- The photoelectric threshold wevelength for potassium (work function being 2 eV) is
- Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations
- Thin uniform rod of length L, cross-sectional area A and density ρ is rotated
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- If Q, E and W denote respectively the heat added, change in internal energy
- The photoelectric threshold wevelength for potassium (work function being 2 eV) is
- Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations
- Thin uniform rod of length L, cross-sectional area A and density ρ is rotated
Topics: Atoms and Nuclei (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends

Leave a Reply