Question

Find the momentum of a 13.6-MeV gamma ray; a 28-keV X ray; a
4.0-*μ*m infrared photon; a 213-MHz radio-wave photon.
Express the momentum in kg · m/s and eV/*c*.

(a) 13.6-MeV gamma ray (b) a 28-KeV X ray (c) a 4.0-*μ*m
infrared photon (d) a 213-MHz radio-wave photon

Answer #1

A(n) x-ray photon has a wavelength of 7.80 ✕ 10−9 cm. Find the
momentum, the frequency, and the energy of the photon in electron
volts. (a) the momentum kg · m/s (b) the frequency Hz (c) the
energy of the photon in electron volts eV Im having trouble. please
help

An X-Ray photon with an energy of E = 128 keV undergoes Compton
Scattering at an angle of θ = 33°. What is the wavelength
(λ0) of the incident photon (in nm)? Use h = 4.136 x
10-15 eVs and c = 3 x 108 m/s.
What is the wavelength (λ') of the scattered photon (in nm)?
What is the energy (E’) if the scattered photon (in keV)? Use h
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A 110 keV X-ray photon coherently scatters off one of the
valence electrons of a nitrogen atom. Assume that the scattering
angle of the photon is θ = 15°. (Use 511 keV for the
energy of an electron at rest, 1.602 ✕ 10−19 C for the
charge of the electron, and 2.998 ✕ 108 m/s for the
speed of light in vacuum.)
a) Calculate the energy of the scattered photon (in
keV).
b) Calculate the velocity of the ejected electron...

A. What is the energy in 10-3 eV of a photon that has
a momentum of 6.13×10−29 kg ⋅ m/s ?
B. What is the energy in 10-9 eV of a photon in a
radio wave from an AM station that has a 1,506 kHz broadcast
frequency?
C. Calculate the frequency in 1020 Hz of a 0.571 MeV
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D. A certain molecule oscillates with a frequency of
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Find the momentum of a photon with a frequency of 2.1 x
1018 Hz.
Group of answer choices
Photons don't have momentum
2.1e18 kg m/s
7.0e10 kg m/s
4.7e-19 kg m/s
4.6e-24 kg m/s

(a) What is the energy in joules of an x-ray photon with
wavelength 2.08 ✕ 10−10 m?
J
(b) Convert the energy to electron volts.
keV
(c) If more penetrating x-rays are desired, should the wavelength
be increased or decreased?
increaseddecreased
(d) Should the frequency be increased or decreased?
increaseddecreased

A hydrogen atom has an angular momentum 5.275 x 10 ^ -34 kg *
m^2/s According to the Bohr model, determine:
A) The number of the orbit (main quantum number)
B) The energy (eV) associated with this state.
C) The radius of this orbit.
D) The speed of the electron associated with this orbit.
e) If a transition occurs from this state to the base state (n =
1), what is the energy that the photon has during the
transition?
f))....

1) The Pauli Exclusion Principle tells us that
no two electrons in an atom can have the same four quantum
numbers.
Enter ONE possible value for each quantum number of an electron
in the orbital given.
Orbital
n
l
ml
ms
1s
There are a total of values possible for
ml.
2s
There are a total of values possible for
ml.
2) The Pauli Exclusion Principle tells us that
no two electrons in an atom can have the same four...

II(20pts). Short Problems
a) The lowest energy of a particle in an infinite one-dimensional
potential well is 4.0 eV. If the width of the well is doubled, what
is its lowest energy?
b) Find the distance of closest approach of a 16.0-Mev alpha
particle incident on a gold foil.
c) The transition from the first excited state to the ground
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1. A bat uses very high frequencies so:
a. He will kill the insects he's hunting
b. We won't hear them
c. The sound waves will be small compared to the
insects
d. The sound waves will be large compared to the
insects
e. He can tune in to KMET for the weather
report
2. Bees see somewhat into the ultraviolet. This is
because:
a. They use radar
b. They can see in the dark
c. They evolved with a...

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