Q28.If the series limit frequency of the Lyman series is VL, then the series limit frequency of the Pfund series is: (1) VL25 (2) 25 VL (3) 16 VL (4) VL16
What This Question Tests
This question tests the understanding of the Rydberg formula for the hydrogen spectrum, specifically defining series limits for different spectral series.
Concepts Tested
Formulas Used
1/λ = RZ²(1/n₁² - 1/n₂²)
v = c/λ
📚 NCERT Sections This Tests
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
12.8 — A 12.5 Ev Electron Beam Is Used To Bombard Gaseous Hydrogen At
Physics Class 12 · Chapter 12
12.8 A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. What series of wavelengths will be emitted?
12.3 — A Difference Of 2.3 Ev Separates Two Energy Levels In An Atom. What
Physics Class 12 · Chapter 12
12.3 A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom make a transition from the upper level to the lower level?
📋 Question Details
- Chapter
- Atoms
- Topic
- Hydrogen Spectrum
- Year
- 2018
- Shift
- 08 Apr
- Q Number
- Q28
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 12: Atoms
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