Question
In: Physics
In this example we will apply the concept of the de Broglie wavelength to neutrons. Find...
In this example we will apply the concept of the de Broglie wavelength to neutrons. Find the speed and kinetic energy of a neutron (m=1.675×10−27kg)(m=1.675×10−27kg) that has a de Broglie wavelength λ=0.200nmλ=0.200nm, typical of atomic spacing in crystals. Compare the energy with the average kinetic energy of a gas molecule at room temperature (T=20∘C)(T=20∘C).
Find the kinetic energy of an electron with a de Broglie wavelength of 0.163 nmnm .
Solutions
genius_generous answered 1 year agoRelated Solutions
a) Derive an expression for the de Broglie wavelength of an electron in the Bohr model...
a) Derive an expression for the de Broglie wavelength of an
electron in the Bohr model of the hydrogen atom as a function of a0
and n.
b) Assume the uncertainty of the electron’s position is the
diameter of its Bohr orbit. Derive an expression for the minimum
uncertainty in electron’s velocity, (∆vn) as function of a0 and n
(and other constants).
c) Use quantization of angular momentum to write an expression
for the velocity as a function of n,...
2.5 Use the de Broglie relation λ=h/p to find the wavelength of electrons with kinetic energy...
2.5 Use the de Broglie relation λ=h/p to find the wavelength of
electrons with kinetic energy equal to 550 eV. Indicate if
relativistic or classical calculations are required.
2.3 Determine the energy of an electron and a photon if each has
momentum equal to 1.071 x 10-21 kgm/s. Provide answer with 4
significant figures.ual to 550 eV. Indicate if relativistic or
classical calculations are required.
An electron has a de Broglie wavelength of 235 nm .What is the speed of the...
An electron has a de Broglie wavelength of 235 nm .What is the
speed of the electron?
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How much energy is contained in 1 mol of γ-ray photons
with a wavelength of 2.43×10−5 nm . ?
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In a technique used for surface analysis called auger electron
spectroscopy (AES), electrons are accelerated toward a metal
surface. These electrons cause the emissions of secondary
electrons-called auger electrons-from the metal surface. The
kinetic energy of the auger electrons depends on the...
The mass of an electron is 9.11×10−31 kg. If the de Broglie wavelength for an electron...
The mass of an electron is 9.11×10−31 kg. If the de Broglie
wavelength for an electron in a hydrogen atom is 3.31×10−10 m, how
fast is the electron moving relative to the speed of light? The
speed of light is 3.00×108 m/s.
1. For what kinetic energy is the de Broglie wavelength of an electron equal to its...
1. For what kinetic energy is the de Broglie wavelength
of an electron equal to its Compton wavelength? Express your answer
in units of mc2 in doing the calculation, and then use mc2 = 0.5
MeV.(Answer: 0.2 MeV)
2. A beam of electrons with energy 1.0 eV approaches a
potential barrier with U = 2.0 eV, whose width is 0.10 nm (see a
figure below). Estimate the fraction of electrons that tunnel
through the barrier. (Hint: use the relation of...
Explain what physicists mean when they say that the de Broglie wavelength relates to the probability...
Explain what physicists mean when they say that the de Broglie
wavelength relates to the probability distribution wave function.
Please be specific and do not copy and paste previous answers.
Calculate the de Broglie wavelength of (a) a 0.715 keV electron (mass = 9.109 × 10-31...
Calculate the de Broglie wavelength of (a) a
0.715 keV electron (mass = 9.109 × 10-31 kg),
(b) a 0.715 keV photon, and (c) a
0.715 keV neutron (mass = 1.675 × 10-27 kg).
5. (5) (a) Describe the de Broglie Model (also known as the de Broglie-Bohr Model) of...
5. (5)
(a) Describe the de Broglie Model (also known as the de
Broglie-Bohr Model) of the hydrogen atom.
(b) What was its motivation? (To address what problem was it
proposed?)
(c) What drawbacks did it still have when it was proposed?
Describe dual nature of matter? Write de Broglie wavelength and frequency? Explain the electron microscope? Write...
Describe dual nature of matter? Write de Broglie wavelength and
frequency? Explain the electron microscope?
Write Bohr’s theory and assumptions for hydrogen atom with
energy level diagram? Write Bohr’s correspondence principle?
Two particles with equal de Broglie wavelength can have equal speed, equal kinetic energy, equal amount...
Two particles with equal de Broglie wavelength can have equal
speed, equal kinetic energy, equal amount of movement and equal
frequency?
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