# College Physics II

posted by .

What is the de Broglie wavelength of electrons with the following value of kinetic energy? 1.06 eV;

What is the de Broglie wavelength of electrons with the following value of kinetic energy? 1.06 keV.

• College Physics II -

I heard you the first time.

De Broglie wavelength is h/(momentum)

h is Planck's cnstant

Use the Kinetic Energy of the electron (E) to get the momentum.
Momentum = sqrt(2E*m)

The energy E will have to be in Joules. I trust you know how to make that conversion.

## Similar Questions

1. ### physics

in an electron microscope, a tungstun cathode with work function 4.5 eV is heated to release electrons that are then initially at rest just outside the cathode. The electrons are accelerated by a potential difference to create a beam …
2. ### de Broglie Wavelength

The presence of oxygen atoms on the surface results in auger electrons with a kinetic energy of approximately 505 eV. What is the de Broglie wavelength of this electron?
3. ### chem 101

. In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV. Electrons with this …
4. ### chem 101

In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV. Electrons with this …
5. ### physics

A particle has a de Broglie wavelength of 3.30 10-10 m. Then its kinetic energy quadruples. What is the particle's new de Broglie wavelength, assuming that relativistic effects can be ignored?
6. ### Physics

A particle has a de Broglie wavelength of 3.30 x 10^-10 m. Then its kinetic energy quadruples. What is the particle's new de Broglie wavelength, assuming that relativistic effects can be ignored?
7. ### Physics

The kinetic energy of a massive particle is equal to the energy of a photon.  The massive particle moves at 1.49 % the speed of light.     What is the ratio of the photon wavelength to the de Broglie wavelength of the particle?
8. ### physics

Calculate the de Broglie wavelength in picometers (1 picometer =10^−12 meters) of an electron that has kinetic energy of 10 keV. The mass of an electron is 9.11 x 10^−31 kg
9. ### chemistry

The De Broglie wavelength of electrons used in an experiment utilizing an electron microscope is 96.00pm. what is the speed of one of these electrons?
10. ### Physics

When light of wavelength 130 nm falls on a cobalt surface, electrons having a maximum kinetic energy of 4.55 eV are emitted. Find values for the following. (a) the work function of cobalt (in eV) (b) the cutoff wavelength (in nm) (c) …

More Similar Questions