Q15.What should be the order of arrangement of de-Broglie wavelength of electron ๐e, an ๐ผ-particle ๐ฮฑ and proton ๐p given that all have the same kinetic energy ? (1) ๐๐= ๐๐= ๐๐ผ (2) ๐e < ๐p < ๐ฮฑ (3) ๐e > ๐p > ๐ฮฑ (4) ๐e = ๐p > ๐ฮฑ
What This Question Tests
This question tests the relationship between de-Broglie wavelength, mass, and kinetic energy to compare wavelengths for different particles with the same kinetic energy.
Concepts Tested
Formulas Used
ฮป = h/p
p = sqrt(2mK)
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 ?
11.3 โ The Photoelectric Cut-Off Voltage In A Certain Experiment Is 1.5 V.
Physics Class 12 ยท Chapter 11
11.3 The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted?
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?
๐ Question Details
- Chapter
- Dual Nature of Matter
- Topic
- de-Broglie Wavelength
- Year
- 2021
- Shift
- 25 Jul Shift 1
- Q Number
- Q15
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 11: Dual Nature of Radiation and Matter
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