Experiment 1
MEASUREMENT OF BASIC LENGTH
Instruments
1. Venier caliper;
2. Micrometer.
1. VERNIER CALIPER
1.1 Introduction
The Vernier Caliper is a precision instrument that can be used to measure internal and external
distances extremely accurately. The

Experiment 4
DETERMINATION OF GRAVITATIONAL ACCELERATION USING
SIMPLE PENDULUM OSCILLATION WITH PC INTERFACE
Principle and task
Earths gravitational acceleration g is determined for different lengths of the pendulum by
means of the oscillating period. If

Measurements and Uncertainties
The establishment or verification of a physical law or the experimental determination of a
physical quantity usually involves measurement. A reading taken from the scale on a stopwatch,
a meter stick or a voltmeter, for exam

Experiment 6
DETERMINATION OF SOUND WAVELENGTH AND VELOCITY
USING STANDING WAVE PHENOMENON
Equipment
1. Glass tube for creating sound resonance;
2. Piston;
3. Electromotive speaker for transmitting the
sound wave and microphone for detecting the
resonant

Experiment 5
INVESTIGATION OF TORSIONAL VIBRATION
Instruments: 1. Torsion apparatus;
2. Torsion rods (steel)
3. Spring balance;
4. Stop watch;
5. Sliding weight
6. Support rods and base.
Purpose of the experiment: Bars of various materials will be excitin

Experiment 2
VERIFICATION OF CONSERVATION OF MOMENTUM AND
KINETIC ENERGY USING AIR TRACK
Instruments:
1. Air track;
2. Blower;
3. Two photogates;
4. Two digital timers;
5. Two gliders attached with flags (devices set on top of gliders to facilitate timing

Experiment 3
MOMENT OF INERTIA OF THE SYMMETRIC RIGID BODIES
I. THEORETICAL BACKGROUND
It is known that the moment of inertia of the body about the axis of rotation is determined by
I = r 2 dm (1)
Where dm is the mass element and r is the distance from th

Digital Watermarking Using DCT Transformation
173
Digital Watermarking Using DCT Transformation
Wen Yuan Chen and Shih Yuan Huang
Department of Electronic Engineering
National Chin-Yi Institute of Technology
Abstract
Owing to personal computers being appl

Bui Duy Do
ID 20130967
HOMEWORK 3
Ex1:
The trigonometric Fourier series representation of a periodic signal x(t) with
fundamental period 0 is given by:
a0
x(t ) (ak cos k0t bk sin k0t )
2 k 1
With
From the graph we have:
x (t )
2A
tA
T0
x (t )
2A
tA
T0

Chapter 22: Gauss Law
Exercises: 1, 3, 5, 11, 17, 19, 21, 27
Problems: 33(35), 35, 39(45), 43(49), 45(37), 47(39), 51(53), 55(55), 57(57), 61(61), 63(63)
22.(33)35. The electric field E1, at one face of a parallelepiped is uniform over the
entire face and

Shortened List of Examination Topics
State your understanding on (each topic is one question):
Chapter 21 ELECTRIC CHARGE AND ELECTRIC FIELD
Chapter 22 GAUSSS LAW
1. Electric Flux and Gausss Law; Applications of Gausss Law on planar, spherical and
cylindr

CHAPTER 5:
OSCILLATOR & REGULATOR
DR. PHM NGUYN THANH LOAN
Hanoi, 9/24/2014
Content of Part 1: Oscillator
2
Oscillator Concepts
Positive feedback
Classification and its oscillation frequency
LC
oscillator
RC oscillator
Oscillator function
3
Generate AC