9. Quantum Mechanics

De Broglie Wavelength

9. Quantum Mechanics

De Broglie Wavelength

Guided videos.

Learn with Jules

Go to the course

Guided course

00:58

De Broglie Wavelength

De Broglie Wavelength Example 1

Additional 4 creators.

Learn with other creators

De Broglie Wavelength Problems In Chemistry

11:21

De Broglie Wavelength Problems In Chemistry

The Organic Chemistry Tutor

748

views

deBroglie Wavelength Calculation Example (velocity given wavelength)

04:18

deBroglie Wavelength Calculation Example (velocity given wavelength)

De-Broglie Wavelength of a Quantum Particle.

Universaldenker ⚛ Physics

398

views

03:41

Deriving The De Broglie Wavelength

Physics - Modern Physics (11 of 26) The de Broglie Wavelength

The de Broglie Wavelength

The de Broglie Wavelength and Wave Particle Duality - A Level Physics

Physics Online

437

views

Showing 7 of 7 videos

Practice this topic

Multiple Choice

What is the velocity (in m/s) of an electron that has a wavelength of 3.13 x 10⁵ pm? (Mass of an electron = 9.11 x 10^-31 kg).

Has a video solution.

Multiple Choice

The faster an electron is moving, the _________ its kinetic energy, and the __________ its wavelength.

628

views

rank

Has a video solution.

Multiple Choice

Consider an atom traveling at 1% the speed of light. The de Broglie wavelength is found to be 7.1316 x 10^-39 m. Which element is this?

2276

views

comments

Has a video solution.

Textbook Question

The speed of sound in dry air at 20 °C is 343 m/s and the lowest frequency sound wave that the human ear can detect is approximately 20 Hz. (b) What would be the frequency of electromagnetic radiation with the same wavelength?

4716

views

Has a video solution.

Textbook Question

Use the de Broglie relationship to determine the wavelengths of the following objects: (a) an 85-kg person skiing at 50 km/hr

583

views

Has a video solution.

Textbook Question

Use the de Broglie relationship to determine the wavelengths of the following objects: (d) an ozone 1O32 molecule in the upper atmosphere moving at 550 m/s.

466

views

Has a video solution.

Textbook Question

Among the elementary subatomic particles of physics is the muon, which decays within a few microseconds after formation. The muon has a rest mass 206.8 times that of an electron. Calculate the de Broglie wavelength associated with a muon traveling at 8.85 * 105 cm/s.

537

views

Has a video solution.

Textbook Question

The resolution limit of a microscope is roughly equal to the wavelength of light used in producing the image. Electron microscopes use an electron beam (in place of photons) to produce much higher resolution images, about 0.20 nm in modern instruments. Assuming that the resolution of an electron microscope is equal to the de Broglie wavelength of the electrons used, to what speed must the electrons be accelerated to obtain a resolution of 0.20 nm?

1866

views

Has a video solution.

Textbook Question

Neutron diffraction is an important technique for determining the structures of molecules. Calculate the velocity of a neutron needed to achieve a wavelength of 125 pm. (Refer to the inside cover for the mass of the neutron.)

496

views

Has a video solution.

Textbook Question

The smallest atoms can themselves exhibit quantum-mechanical behavior. Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling at 475 m/s.

1032

views

Has a video solution.

Textbook Question

A proton in a linear accelerator has a de Broglie wavelength of 122 pm. What is the speed of the proton?

4193

views

rank

Has a video solution.

Textbook Question

Calculate the de Broglie wavelength of a 143-g baseball traveling at 95 mph. Why is the wave nature of matter not important for a baseball?

2116

views

Has a video solution.

Textbook Question

A 0.22-caliber handgun fires a 1.9-g bullet at a velocity of 765 m>s. Calculate the de Broglie wavelength of the bullet. Is the wave nature of matter significant for bullets?

1131

views

Has a video solution.

Textbook Question

Protons and electrons can be given very high energies in particle accelerators. What is the wavelength in meters of an electron (mass = 9.11 * 10-31 kg) that has been accelerated to 5% of the speed of light? In what region of the electromagnetic spectrum is this wavelength?

541

views

Has a video solution.

Textbook Question

What is the de Broglie wavelength in meters of a baseball weighing 145 g and traveling at 156km/h? Why do we not observe this wavelength?

783

views

Has a video solution.

Textbook Question

At what speed in meters per second must a 145 g baseball be traveling to have a de Broglie wavelength of 0.500 nm?

481

views

Has a video solution.

Textbook Question

What velocity would an electron (mass = 9.11 * 10-31 kg) need for its de Broglie wavelength to be that of red light (750 nm)?

787

views

Has a video solution.

Textbook Question

The first 25 years of the twentieth century were momentous for the rapid pace of change in scientists' understanding of the nature of matter. (b) In what ways is de Broglie's hypothesis, as it applies to electrons, consistent with J. J. Thomson's conclusion that the electron has mass? In what sense is it consistent with proposals preceding Thomson's work that the cathode rays are a wave phenomenon?

342

views

Has a video solution.

Textbook Question

X rays with a wavelength of 1.54 * 10-10 m are produced when a copper metal target is bombarded with high-energy electrons that have been accelerated by a voltage difference of 30,000 V. The kinetic energy of the electrons equals the product of the voltage difference and the electronic charge in coulombs, where 1 volt-coulomb = 1 J. (a) What is the kinetic energy in joules and the de Broglie wavelength in meters of an electron that has been accel-erated by a voltage difference of 30,000 V?

563

views

Has a video solution.

Textbook Question

(b) Light with a wavelength of 2.50 * 10-7 m falls on a piece of chromium in an evacuated glass tube. What is the minimum de Broglie wavelength of the emitted elec-trons? (Note that the energy of the incident light must be conserved; that is, the photon's energy must equal the sum of the energy needed to eject the electron plus the kinetic energy of the electron.)

450

views

Has a video solution.

Textbook Question

511

views

Has a video solution.

Showing 21 of 21 practice

My Channels

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

9. Quantum Mechanics

De Broglie Wavelength

Learn with Jules

Learn with other creators

Practice this topic