Question

What is the kinetic energy in eV of an electron whose de Broglie wavelength is 18 % of the wavelength of a photon having the energy equal to electrons kinetic energy?

Answer in eV

Answer #1

A non-relativistic electron has a kinetic energy of 5.4 eV. What
is the energy of a photon whose wavelength is the same as the de
-Broglie wavelength of the electron?
the electron?
A) 2.4 keV B) 2.2 keV C) 2.0 keV D) 2.5 keV E) 2.7 keV

What is (a) the wavelength of a 5.10-eV photon
and (b) the de Broglie wavelength of a 5.10-eV
electron?

What is (a) the wavelength of a 4.90-eV photon
and (b) the de Broglie wavelength of a 4.90-eV
electron?

If the De Broglie wavelength of an electron is equal to 450
nm calculate the velocity of the electron. Assume that the
electron's speed is non-relativistic.
Tries 0/10
If the kinetic energy of an electron is 170 eV,
calculate its De Broglie wavelength. For this non-relativistic
electron you must first calculate its velocity from the general
kinetic energy equation. Then you can find the De Broglie
wavelength of the electron.

If the de Broglie wavelength of an electron is 258 nm , what is
the kinetic energy of this electron?

Calculate the de Broglie wavelength of a ? - particle ejected
from the nucleus of a radioactive element with a kinetic energy of
7.5 eV. What is the frequency of a photon with the same
wavelength?

A photon has a wavelength that is the same as the de Broglie
wavelength of an electron.
(a) How does the momentum of the photon, compare to the momentum of
the electron,
(b)How does the energy of the photon, compare to the total
energy of the electron

(a) An electron has a de Broglie wavelength of 2 pm. Calculate
the relativistic velocity of the electron in terms of c.
(b) A beam of 1.9 eV electrons bombards a sample of hydrogen. If
a spectral line of the Balmer series is observed, calculate the
initial energy level, n-i of the electron.

(a) An electron has a kinetic energy of 6.23 eV. Find its
wavelength. nm (b) A photon has energy 6.23 eV. Find its
wavelength. nm

(a) An electron has kinetic energy 6.00 eV. Find its wavelength.
m (
b) A photon has energy 6.00 eV. Find its wavelength. m

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