Q19.In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked ๐ด, ๐ต, ๐ถ, ๐ท and ๐ธ. The transitions ๐ด, ๐ต and ๐ถ respectively represent (1) The ionization potential of hydrogen, second (2) The series limit of Lyman series, second member member of Balmer series and third member of of Balmer series and second member of Paschen Paschen series. series. (3) The series limit of Lyman series, third member of (4) The first member of the Lyman series, third Balmer series and second member of Paschen member of Balmer series and second member of series. Paschen series.
What This Question Tests
This question tests the conceptual understanding of the relationship between a photon's momentum, energy, and wavelength, specifically Planck's and de Broglie's relations.
Concepts Tested
Formulas Used
p = h/ฮป
E = hc/ฮป
๐ NCERT Sections This Tests
12.5 โ A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 ยท 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 โ A 12.5 Ev Electron Beam Is Used To Bombard Gaseous Hydrogen At
Physics Class 12 ยท 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 โ A Difference Of 2.3 Ev Separates Two Energy Levels In An Atom. What
Physics Class 12 ยท 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?
๐ Question Details
- Chapter
- Dual Nature of Matter
- Topic
- Photon Properties
- Year
- 2021
- Shift
- 24 Feb Shift 1
- Q Number
- Q19
- Type
- Assertion Reasoning
- NCERT Ref
- Class 12 Physics Ch 11: Dual Nature of Radiation and Matter
More from this Chapter
Q68.Sodium and copper have work functions 2.3eV and 4.5eV respectively. Then the ratio of the wave lengths is nearest to JEE Main 2002 JEE Main Previous Year Paper (1) 1 : 2 (2) 4 : 1 (3) 2 : 1 (4) 1 : 4
Q69.Formation of covalent bonds in compounds exhibits (1) wave nature of electron (2) particle nature of electron (3) both wave and particle nature of electron (4) none of these
Q80.Uncertainity in position of a minute particle of mass 25 g in space is 10โ5 m. What is the uncertainity in its velocity (in msโ1)? ( h = 6.6 ร 10โ34Js) (1) 2.1 ร 10โ34 (2) 0.5 ร 10โ34 (3) 2.1 ร 10โ28 (4) 0.5 ร 10โ23 Q81. ฮฒ - particle is emitted in radioactivity by (1) conversion of proton to neutron (2) from outermost orbit (3) conversion of neutron to proton (4) ฮฒ-particle is not emitted
Q27.The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by (1) Rayleigh Jeans law (2) Planck's law of radiation (3) Stefan's law of radiation (4) Wien's law