Q30.A monochromatic light is incident on a hydrogen sample in ground state. Hydrogen atoms absorb a fraction of light and subsequently emit radiation of six different wavelengths. The frequency of incident light is š„Ć 1015 Hz. The value of x is ________ (Given ā= 4 . 25 Ć 10-15 eVs) Q31.25 mL of silver nitrate solution ( 1M ) is added dropwise to 25 mL of potassium iodide ( 1 . 05 M ) solution. The ion(s) present in very small quantity in the solution is/are (1) I- only (2) K+only (3) NO3- only (4) Ag+ and I-both
What This Question Tests
This question tests the understanding of hydrogen atom energy levels and photon absorption/emission, requiring determination of the incident photon's energy and frequency.
Concepts Tested
Formulas Used
E_n = -13.6/nĀ² eV
ĪE = hf
š NCERT Sections This Tests
12.5 ā A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 Ā· 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.
12.3 ā A Difference Of 2.3 Ev Separates Two Energy Levels In An Atom. What
Physics Class 12 Ā· 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?
12.8 ā A 12.5 Ev Electron Beam Is Used To Bombard Gaseous Hydrogen At
Physics Class 12 Ā· 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?
š Question Details
- Chapter
- Atoms
- Topic
- Hydrogen spectrum and Bohr's model
- Year
- 2023
- Shift
- 11 Apr Shift 1
- Q Number
- Q30
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 12: Atoms
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