Q17.The de Broglie wavelengths of a proton and an ๐ผ particle are ๐ and 2๐ respectively. The ratio of the velocities of proton and ๐ผ particle will be : (1) 1 : 8 (2) 1 : 2 (3) 4 : 1 (4) 8 : 1
What This Question Tests
This question tests the understanding of the de Broglie wavelength formula and its inverse proportionality to momentum, requiring knowledge of the masses of a proton and an alpha particle.
Concepts Tested
Formulas Used
ฮป = h/p = h/(mv)
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 ?
12.5 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.
12.7 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
- 2024
- Shift
- 01 Feb Shift 1
- Q Number
- Q17
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 11: Dual Nature of Radiation and Matter
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