Light as Waves and Particles - Reflection, Refraction,
Dispersion
Introduction to the Dual Nature of Light
During the 19th and 20th centuries there was a lot of debate about the true nature of light. Some scientists
argued that light was an electromagneti
cfw_iii
The terms ofa segue nce a are generated by the
recurrence relation
311+] = an 5." 111 + _2 for
n = 3, 1: 5,.
Using your Maple worksheet, write a for loop to ncl
the 1.ralue ofom given that
a1=I, a2=1 ancla3=
Copy cfw_Ctrl-C the correct 1.ralue ofo
Eastern Airlines e-ticket verication system
The website can be veried China Eastern Airtines ticket cashier, ESP ticket. itinerary as well as in Eastern ofcial website
to buy premium.
Ifyou have already used the tickets, within three months ofthe system c
SOLUTION TO THE PHOTOELECTRIC EFFECT PHYSICS TASK
The photoelectric equation, with the variables defining the usual parameters, is given by:
hf K max
Also,
cf
Thus,
c 2.9979 108
f
6.7217 1014 Hz
9
446 10
Therefore,
f 6.7217 1014 Hz
So, in the space prov
Practice test 4 1221
You have 30 minutes to do this test. It is out of 25.
1. When light is shone on a metal surface in a vacuum electrons are ejected from the surface.
An opposing voltage can be applied to
Practice test 3 1221: The test is out of 25 marks.
Question 1:
A small laser emits light at a power 5.00 mW and wavelength 633 nm. The laser
beam is focused (narrowed) until its diameter matches the 1266 nm di
Practice test 2 1221 (25 marks)
1. A capacitor, C1, of capacitance 4.0 F is fully charged across a 12.0 V battery. It
is then connected to a second capacitor, C2, of capacitance 6.0 F.
a) What charge is st
Grade 3.6? out Of 10.00 (STEM
Information
Laboratory Manual Update
Flag question
I? Please update page 243 of your lab manual. The rst line under the heading "Fluorescent Light Source" says "The ceiling lights
are a uorescent light source". Change this to
180 UNSW UNDERGRADUATE HANDBOOK
Faculty of Engineering
A Message from the Dean
This Handbook describes the many undergraduate programs available in the Faculty of Engineering at UNSW.
There is a very wide choice of programs, plans and electives and we the
Topic 26
Rigid Body Dynamics I
E Sze Tu
Adapted from G Rogers
Lecture Overview
Angular Velocity of a Rigid Body
Angular Acceleration
Equations of Uniformly Accelerated Rotational Motion
Connecting Equations
Moments of Inertia
Radius of Gyration
Base
Reflection and Transmission
When a wave strikes a boundary between two media, part of the wave is reflected and part of it
is transmitted. Conservation of energy means that the sum of reflected and transmitted wave energies
must equal the energy of the or
The Magnetic Force Between Parralel Conductors
Consider the following setup:
The force F1 of wire 2 on wire 1 is given by:
Which in this case equates to:
F1 = B2I1L
B2 is considered to be the magnetic field of an infinitely long wire, and so
substituting
The Magnetic Field of a Solenoid
Introducing Solenoids
A solenoid is a wire wound in a helix shape, similar to the shape of a slinky, such that
when current flows through the wire of an ideal solenoid a uniform magnetic field is produced
inside
The field
Huygen's Principle
Huygen's principle is a geometric tool which allows us to determine the position of
the wavefront at a point in time based on previous knowledge of the wavefront
The principle considers light as waves, not as particles
The principle inv
Lenz's Law
Lenz's law describes the direction of the current induced by Faraday's Law. It states that the induced
current in a loop is in the direction such that the resultant magnetic field opposes the change in flux which
produced it (the current attemp
Energy Density
Energy density (u) is the energy per unit volume.
Previously in the course we learned that for electric and magnetic fields, u E = oE2/2 and
uB = B2/2o
For EM waves however the electric and magnetic fields are related by c = E/B and c =
(oo
Faraday's Law, Lenz's Law and Inductors
Introducing Faraday's Law
Introducing Magnetic Induction and Electromotive Force
It is given that a moving charge or current induces a magnetic field, however Michael
Faraday showed that a varying magnetic field ind
Ampere's and Biot-Savart Law
The Biot-Savart Law and Ampere's Law and related in their common function. Both laws can be used to
derive the magnetic field for various arrangements of current-carrying conductors. Choosing which law is
the easiest will come
Light as Electromagnetic Waves
Introduction
In 1865, James Clark Maxwell provided a theory which showed the relationship between electric and
magnetic phenomena, from which he derived the idea that light is an electromagnetic wave (a form of
energy which
FOUNDATION STUDIES
Student Number:
_
Family Name:
_
Other Names:
_
Class Group:
_
Question
Possible
Mark
16
10
17
10
18
10
19
10
20
10
Physics
TOTAL (B)
50
(PART C)
Foundation Program
Final Examination
Total Time Allowed for Parts A + B + C: 3 hours
Readi
Solutions to Exercises
168
Problem Set 11.1, page 516
1 Without exchange, pivots .001 and 1000; with exchange, 1 and 1. When the pivot is
1
1
1
|entry|
1. A = 0
1 1 .
|pivot|
1
1
1
9 36
30
2 The exact inverse of hilb(3) is A1 = 36
192 180 .
30 180
180
UNIT 22
Tutorial 2
Writing
TASK A- Six Steps for Paraphrasing
1.[P] Before you read, have a clear purpose in mind. Decide what type of information
you need and how much detail.
2.[U] Read the passage until you understand it clearly. Highlight the importan