Q17.The equation ๐= nm can be used to find the de-Broglie wavelength of an electron. In this equation ๐ฅ x stands for : Where, ๐= mass of electron ๐= momentum of electron ๐พ= Kinetic energy of electron ๐= Accelerating potential in volts for electron (1) โ๐๐พ (2) โ๐ (3) โ๐พ (4) โ๐
What This Question Tests
This question tests the ability to express de-Broglie wavelength in terms of momentum, kinetic energy, and accelerating potential, and identify the correct relationship for the variable 'x'.
Concepts Tested
Formulas Used
ฮป = h/p
p = โ(2mK)
K = eV
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
- 2022
- Shift
- 28 Jul Shift 1
- Q Number
- Q17
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 11: Dual Nature of Radiation and Matter
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