Q16.The de-Broglie wavelength associated with an electron and a proton were calculated by accelerating them through same potential of 100 V . What should nearly be the ratio of their wavelengths ? ( mp = 1. 00727 u, me = 0. 00055 u) (1) 1860 : 1 (2) (1860)2 : 1 (3) 41. 4 : 1 (4) 43 : 1
What This Question Tests
This question requires calculating the ratio of de Broglie wavelengths for an electron and a proton accelerated through the same potential, using the relation between wavelength, momentum, and kinetic energy.
Concepts Tested
Formulas Used
ฮป = h/p
p = โ(2mK)
K = qV
๐ NCERT Sections This Tests
11.10 โ What Is The De Broglie Wavelength Of
Physics Class 12 ยท Chapter 11
11.10 What is the de Broglie wavelength of (a) a bullet of mass 0.040 kg travelling at the speed of 1.0 km/s, (b) a ball of mass 0.060 kg moving at a speed of 1.0 m/s, and (c) a dust particle of mass 1.0 ร 10โ9 kg drifting with a speed of 2.2 m/s ?
12.4 โ The Ground State Energy Of Hydrogen Atom Is โ13.6 Ev. What Are The
Physics Class 12 ยท Chapter 12
12.4 The ground state energy of hydrogen atom is โ13.6 eV. What are the kinetic and potential energies of the electron in this state?
12.7 โ The Radius Of The Innermost Electron Orbit Of A Hydrogen Atom Is
Physics Class 12 ยท Chapter 12
12.7 The radius of the innermost electron orbit of a hydrogen atom is 5.3ร10โ11 m. What are the radii of the n = 2 and n =3 orbits?
๐ Question Details
- Chapter
- Dual Nature of Matter
- Topic
- De Broglie Wavelength
- Year
- 2021
- Shift
- 16 Mar Shift 2
- Q Number
- Q16
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 11: Dual Nature of Radiation and Matter
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