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PH6151 Engineering Physics- I Scanned Lecture Notes (All Units) - Sreedhar Editon
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Anna University , Chennai
Common to All Department
First Semester
PH6151 Engineering Physics- I
Scanned Lecture Notes - Sreedhar Edition
(Regulation 2013)

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Content :
UNIT-1
CRYSTAL PHYSICS
Solids
1. Amomphous solids
2. Crystalline solids
Basics
Unit cell
Crystal system
Crystal parameters
1. Number of units per unit cell
2. Atomic radius
3. Co-ordination number
4. Atomic packing factor
Face centroid cubic
Czochralski method
Basic principle
Advantages limitation
Bridgman techniques
Principle
Vertical Bridgman growth techniques
Merits 
Demerits

UNIT-2
PROPERTIES OF MATTER AND THERMAL PHYSICS
Elasticity
Stress
Strain
Hook’s law
Normal stress
Tangential stress
Types of strain
Longitudinal strain
Shearing strain
Volumetric strain
Different moduli of elasticity
Young’s modulus (E)
Rigidity modulus (G)
Bulk modulus (k)
Poisson’s ratio
Relation between three modulus of elasticity
Elastic limit
Yield point
Stress-strain diagram
Factor affecting elasticity
1. Effect of temperature
2. Effect of impurities
3. Effect of hammering 
4. Effect of annealing
5. Effect of stress
Expression for bending moments
Heat transfer
1. Conduction
2. Convection
3. Radiation
Thermal conductivity
Thermal diffusivity
Specific heat capacity
Newton’s law of cooling
Before steady state is reached
After steady state is reached
Determination of thermal conductivity
Seale’s method
Working
Under steady state
Radial heat flow
Thermal conductivity of rubber
Estimation of rate of cooling
Heat conduction through a compound area

UNIT-3 
QUANTUM PHYSICS
Black body radiation
Laws
Stefen-boltzmann’s law
Wien’s displacement law
Ray leigh-joans law
Assumption
Experimental verification
De-broglie wavelength
Time dependent wave equation
Time independent wave equation
Physical significance wave function
Advantages 
Disadvantages

UNIT-4
ACOUSTICS AND ULTRASONIC
Acoustics
1. Infrasonic
2. Sonic(audible)
3. Ultrasonic
Music
Noise
Characteristics of musical sound
1. Pitch
2. Quality
3. Intensity
Magnetostriction generator
Merits
Demerits
Piezo electric generator
Limitation
Advantages
1. Drilling and cutting
2. Welding
3. Cleaning ,drying
4. Depth sounding
SONAR
1. A-scan
2. B-scan
3. C-scan


UNIT-5
PHOTONICS AND FIBRE OPTICS
1. Directionality
2. Intensity
3. monochromatic
Absorption
Spontaneous emission
Stimulated emission
Principle of laser action
Population inversion
Pumping method
Homo junction laser
Hetero junction laser
Laser heat treatment
1. laser cutting
2. laser drilling
3. laser welding
4. CD\DVD
5. Thin film technology
Construction of hologram
Reconstruction of hologram
Optical fiber
1. Material
a. Glass fiber
b. Plastic fiber
2. No.of modes
a. Single mode
b. Multi mode
3. Refractive index profile
a. Step index
b. Graded index
Attenuation
Absorption
Scattering
Dispersion
1. Inter-model dispersion
2. Material dispersion
3. Waveguide dispersion
Light emitting diode
Detectors
Fiber optic sensor
Temperature sensor
Displacement sensor
Outer fiber
Inner fiber 

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