1. X-rays with a wavelength of 2, =8.55pm are used in a Compton scattering experiment (i.e. the photons are scattered by essentially free electrons). a. What is the energy, E,, of the incident photons in eV? b. When the Compton scattered X-ray scatters to an angle (measured from the direction of the incident X-ray) of 0 =115.0°, what is the wavelength of the Compton scattered X-ray? c. When the Compton scattered X-ray scatters to an angle (measured from the direction of the incident X-ray) of 0 =115.0°, what is the change in energy for the X-ray photon in eV? d. When the Compton scattered X-ray scatters to an angle (measured from the direction of the incident X-ray) of 0 =115.0°, what is the change in kinetic energy for the scattered electron in eV?

icon
Related questions
Question
For full credit, show the starting equation in symbols. If it makes sense, solve in symbols before plugging
in numerical values. Remember, physical quantities with units have to have the units written down.
Unless otherwise stated, keep enough sig-figs to produce a final answer accurate to three sig-figs
1. X-rays with a wavelength of 4 =8.55 pm are used in a Compton scattering experiment
(i.e. the photons are scattered by essentially free electrons).
a. What is the energy, E, , of the incident photons in eV?
b. When the Compton scattered X-ray scatters to an angle (measured from the
direction of the incident X-ray) of 0 = 115.0°, what is the wavelength of the
Compton scattered X-ray?
c. When the Compton scattered X-ray scatters to an angle (measured from the
direction of the incident X-ray) of 0 =115.0°, what is the change in energy for the
X-ray photon in eV?
d. When the Compton scattered X-ray scatters to an angle (measured from the
direction of the incident X-ray) of 0 =115.0°, what is the change in kinetic energy
for the scattered electron in eV?
Transcribed Image Text:For full credit, show the starting equation in symbols. If it makes sense, solve in symbols before plugging in numerical values. Remember, physical quantities with units have to have the units written down. Unless otherwise stated, keep enough sig-figs to produce a final answer accurate to three sig-figs 1. X-rays with a wavelength of 4 =8.55 pm are used in a Compton scattering experiment (i.e. the photons are scattered by essentially free electrons). a. What is the energy, E, , of the incident photons in eV? b. When the Compton scattered X-ray scatters to an angle (measured from the direction of the incident X-ray) of 0 = 115.0°, what is the wavelength of the Compton scattered X-ray? c. When the Compton scattered X-ray scatters to an angle (measured from the direction of the incident X-ray) of 0 =115.0°, what is the change in energy for the X-ray photon in eV? d. When the Compton scattered X-ray scatters to an angle (measured from the direction of the incident X-ray) of 0 =115.0°, what is the change in kinetic energy for the scattered electron in eV?
Quantum Mechanics (Matter Waves):
Formula Page
hc
Photon energy: E =hf =
Photoelectric effect: Kmax
m,v
2
= hf -W, W is the work function, K
=eV
max
=
stop
max
h
E
p =
Photon momentum:
h
- = 2.4263 pm
m.c
Compton wavelength: Ac =-
h
-(1-cos0) = 1c(1-cos 0)
m.c
Compton scattering: 1, – 2
%3D
hc
E
de Broglie: 1 ==; f =
h
h
non relativistic particle: K =
2m
1=-
V2mc*K
Wave function (solutions for bound states): y(x, y, z, 1) = y(x, y,z) e
Probability Density (1d): P(x)=w*(x); v*(x)dx=1;(for complex valued wave functions
replace y (x) with w (x)·w°(x) )
Ax:Ap, 2h
Heisenberg Uncertainty Principle (3d): Ay Ap, 2h
Az-Ap, 2h
87'm(U,-E)
b =
Barrier tunneling: T z e2bL
(T must be small)
h?
Expectation value: (x) = [ xy? (x)dx; (f(x))= [ f(x)y²(x)dx
h? d'y(x)
Schrödinger Equation (time independent – 1 dimensional):
+U(x)w(x) = Ey (x)
2m dx?
NT X
n'h?
Infinite 1-d square well with x from 0 to L : y.(x) = A, sin
L
; E. =-
-; A=
8 mL
E,-E,
Photon frequency from an electron changing energy levels: f
h
(k – k,)° .
(k, +k,)*
Step potential reflection and transmission: R=
R+T =1; k =
is the radian
h
for non-relativistic particles (like non-relativistic electrons)
(angular) wavenumber – and =
Transcribed Image Text:Quantum Mechanics (Matter Waves): Formula Page hc Photon energy: E =hf = Photoelectric effect: Kmax m,v 2 = hf -W, W is the work function, K =eV max = stop max h E p = Photon momentum: h - = 2.4263 pm m.c Compton wavelength: Ac =- h -(1-cos0) = 1c(1-cos 0) m.c Compton scattering: 1, – 2 %3D hc E de Broglie: 1 ==; f = h h non relativistic particle: K = 2m 1=- V2mc*K Wave function (solutions for bound states): y(x, y, z, 1) = y(x, y,z) e Probability Density (1d): P(x)=w*(x); v*(x)dx=1;(for complex valued wave functions replace y (x) with w (x)·w°(x) ) Ax:Ap, 2h Heisenberg Uncertainty Principle (3d): Ay Ap, 2h Az-Ap, 2h 87'm(U,-E) b = Barrier tunneling: T z e2bL (T must be small) h? Expectation value: (x) = [ xy? (x)dx; (f(x))= [ f(x)y²(x)dx h? d'y(x) Schrödinger Equation (time independent – 1 dimensional): +U(x)w(x) = Ey (x) 2m dx? NT X n'h? Infinite 1-d square well with x from 0 to L : y.(x) = A, sin L ; E. =- -; A= 8 mL E,-E, Photon frequency from an electron changing energy levels: f h (k – k,)° . (k, +k,)* Step potential reflection and transmission: R= R+T =1; k = is the radian h for non-relativistic particles (like non-relativistic electrons) (angular) wavenumber – and =
Expert Solution
steps

Step by step

Solved in 6 steps

Blurred answer
Similar questions