Question

During a collision between a photon and an electron, there is conservation of

(A) energy, only

(B) momentum, only

(C) both energy and momentum

(D) neither energy nor momentum

As a photon loses energy during a collision, its wavelength

(A) decreases

(B) increases

(C) remains the same

Answer #1

During a collision between a photon and an electron, there is conservation of

(C) both energy and momentum

the collision between a photon and an electron is considered to be perfectly elastic and both momentum and energy are conserved.

As a photon loses energy during a collision, its wavelength

(A) increases

The energy of a photon is given by the relation, E = hc/λ

Where, h- Planck’s constant

c-speed of light

λ- wavelength

it is clear that a decrease in energy results in increase of wavelength.

In the Compton effect, a 0.133 nm photon strikes a free electron
in a head-on collision and knocks it into the forward direction.
The rebounding photon recoils directly backward.
Use conservation of (relativistic) energy and momentum to
determine the kinetic energy of the electron.
Use the equation p=E/c=hf/c=h/λ.
K =
eV
Determine the wavelength of the recoiling photon.
λ′ =
nm

In the Compton effect, a 0.128 nm photon strikes a free electron
in a head-on collision and knocks it into the forward direction.
The rebounding photon recoils directly backward.
Part A
Use conservation of (relativistic) energy and momentum to
determine the kinetic energy of the electron. Use the equation
p=Ec=hfc=h?. K = eV
Part B
Part complete
Determine the wavelength of the recoiling photon.
?? =
0.133
nm

In a Compton collision between a 10 MeV photon and an electron,
the energy of the photon scattered at a right angle is
approximately

Derive an expression for the interaction between a photon
incident on a nearly-free electron in an aluminum target. Make sure
to consider conservation of both relativistic energy and momentum
for the photon and electron before and after the interaction. If an
incident photon has an energy of 662 keV, calculate the energy of
the photon that is scattered through an angle of 35˚.

Which of the following statements is correct?
Select one:
a. As the energy of a photon increases, its frequency
decreases.
b. As the wavelength of a photon decreases, its energy
decreases.
c. The product of wavelength and frequency of electromagnetic
radiation depends on the color of the wave.
d. As the wavelength of a photon increases, its frequency
increases.
e. As the frequency of a photon increases, its energy
increases.

A 0.343-nm photon collides with a stationary electron. After the
collision, the electron moves forward and the photon recoils
backwards.
(a) Find the momentum of the electron.
kg · m/s
(b) Find the kinetic energy of the electron.
eV

Compton Scattering.A photon of wavelength λcollides elastically
with a free electron (initially at rest) of mass m. If the photon
scatters at an angle φfrom its original direction of travel, use
conservation of relativistic linear momentum and conservation of
relativistic energy to derive a mathematical expression for the
scattered photon’s wavelength λ’.

A photon with wavelength of 0.1110 nm collides with a free
electron that is initially at rest. After the collision the
wavelength is 0.1135 nm .
Part A
What is the kinetic energy of the electron after the
collision?
K = ??? J
Part B
What is its speed?
v = ??? m/s
Part C
If the electron is suddenly stopped (for example, in a solid
target), all of its kinetic energy is used to create a photon. What
is...

When an x-ray photon collides with an electron at rest,...
Explain.
A) the electron turns into a photon.
B) the electron absorbs the photon and becomes a proton.
C) the energy of the x-ray photon is completely absorbed by the
electron, which now has
extra energy and momentum.
D) the magnitude of the scattered photon's momentum is the same
as that of the incident
x-ray photon, but the direction of the momentum is altered.
E) the frequency of the scattered...

An incident x-ray photon is scattered from a free
electron that is initially at rest. The photon is scattered
straight back at an angle of 180? from its initial direction. The
wavelength of the scattered photon is 8.80×10?2 nm .
(A) What is the wavelength of the incident photon?
(B) What is the magnitude of the momentum of the
electron after the collision?

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