Photoelectric Effect Lab
Introduction:
Three fundamental questions of physics are:
1) What is matter?
2) What is energy?
3) What is the nature of the interaction between energy and matter?
These questions are every bit as important today as they were at t
Lesson 9
I.
Particle In A Finite Well
We return to solving simple systems that can be used to model real
physical systems like the nucleus.
The first system considered is a particle of energy E in a finite well of
width L and height Uo as finite as shown
Lesson 8
I.
Operators In Quantum Mechanics
A.
Hermitian Adjoint - A +
The Hermitian adjoint of an operator A is the operator A + which obeys
the equation
A + = A
EXAMPLE: Show that the Hermitian adjoint of a number is its complex
conjugate.
+
EXAMPLE: S
Lesson 5
I.
Time Independent Schrdinger Equation
A.
The first problem that we will consider is the case where the
Hamiltonian is not a function of time. In classical mechanics, the time
derivative of a physical quantity, A, is given by
dA A
=
+ cfw_ A, H
Lesson Module 4
I.
Heisenberg Uncertainty Principle
A.
Fourier Transform
A common technique for solving differential equations is the Fourier Transform
that converts the solution of a difficult differential equation into an easier to
solve algebraic equat
Wave Nature of Matter
I.
Matter Waves
A.
Louis de Broglie - 1924
All matter ("particles") also posses wave properties.
Louis de Broglie assumes that nature has a basic symmetry. If light travels as a
wave but interacts as a particle as claimed by Einstein
Blackbody Radiation Theory
I.
History of Blackbody Radiation
A.
What is a blackbody?
A blackbody is an object that absorbs all radiation that is incident upon it.
When radiation falls upon an object, some of the radiation may be absorbed,
reflected, or tr
Bohr Atom
I.
Bohr Atom
A.
Bohr's Postulates
1.
An electron moves in a circular orbit around the nucleus due to the
Coulomb force.
Z
( )( )
F = k Z e2 e r = - ke 2 r
r2
r
2.
Electrons can only exist in orbits where the magnitude of its angular
momentum i
Atomic Emission and Absorption Spectroscopy
I.
Atomic Emission and Absorption Spectrum
A.
Experimental Facts
1.
_Atoms_ emit and absorb ONLY _Discrete_
FREQUENCIES ( or WAVELENGTHS) of _Electromagnetic
Radiation_ .
2.
The _Emission_ and _Absorption_
spect
Module I
Review of Classical Mechanics
1.
Coordinates and Trajectories
Two of the primary goals of classical physics is to describe the location of an
object in space and how the object's location will change with time.
A.
Coordinates
A set of numbers tha
Finit e Well
2
Va lue
1
Column B
Column C
0
0
0.1
0.2
0.3
0.4
0.5
-1
-2
Et a
0.6
0.7
0.8
0.9
1
Column D
Uo=
Eo=
hc=
L=
eta
40 eV
5.11E+05 eV
1240 eV.nm
0.5 nm
Num
Den
LHS
0.02
0.9025 3.1763485 0.2841313
0.04 0.6741206 3.7541278 0.1795678
0.06 0.3550277 3.