ENGINEERING PHYSICS MODULE – 1 : MODERN PHYSICS 1.1

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ENGINEERING PHYSICS
MODULE – 1 : MODERN PHYSICS
1.1 UNIT – 1 :
BLACK BODY RADIATION
1.2 UNIT – 2 :
WAVES AND PARTICLES
MODULE – 2 : QUANTUM MECHANICS
1.1 UNIT – 1 :
UNCERTAINITY PRINCIPLE
1.2 UNIT – 2 :
SCHRODINGER’S WAVE EQUATION
MODULE – 3 : ELECTRICAL CONDUCTIVITY IN METALS, DIELECTRICS AND
MAGNETIC PROPERTIES
1.1 UNIT – 1 :
CLASSICAL FREE ELECTRON THEORY
1.2 UNIT – 2 :
QUANTUM FREE ELECTRON THEORY
1.3 UNIT – 3 :
DIELECTRIC PROPERTIES OF MATERIALS
1.4 UNIT – 4 :
MAGNETIC PROPERTIES OF MATERIALS
MODULE – 4 : LASERS
1.1 UNIT – 1 :
LASER PRINCIPLE AND TYPES
1.2 UNIT – 2 :
APPLICATIONS OF LASER
MODULE – 5 : SUPER CONDUCTIVITY AND OPTICAL FIBERS
1.1 UNIT – 1 :
SUPER CONDUCTIVITY
1.2 UNIT – 2 :
OPTICAL FIBRE
MODULE – 6 : CRYSTAL STRUCTURE, NANO MATERIALS AND ULTRASONICS
1.1 UNIT – 1 :
CRYSTAL STRUCTURE
1.2 UNIT – 2 :
NANO MATERIALS
1.3 UNIT – 3 :
ULTRA SONICS
SYLLABUS
MODULE – 1 : MODERN PHYSICS
1.1 UNIT – 1 :
BLACK BODY RADIATION
 Introduction to black body radiation spectrum, photoelectric effect – Compton Effect.
1.2 UNIT – 2 :
WAVES AND PARTICLES
 Wave particle dualism, De-Broglie hypothesis, De-Broglie wavelength – Davisson
and Germer Experiment
 Matter waves and their characteristic properties, phase velocity, Group velocity and
Particle velocity. Relation between phase velocity and Group velocity. Relation
between Group Velocity and Particle Velocity.
 Expression for De-Broglie Wavelength in terms of Group velocity
MODULE - 2 : QUANTUM MECHANICS
1.1 UNIT – 1 :
UNCERTAINITY PRINCIPLE
 Heisenberg’s Uncertainty principle and its physical significance (no derivation).
 Application of uncertainty principle (non-existence of electron in nucleus)
1.2 UNIT – 2 :
SHRODINGER WAVE EQUATION
 Wave function. Properties and physical significance of a wave function.
 Probability density and Normalization of wave function. Setting up of a one dimensional
time independent Schrödinger wave equation
 Eigen values and Eigen function. Application of Schrödinger wave equation - particle in
a potential well of infinite depth (particle in a box) and free particles.
MODULE - 3 : ELECTRICAL CONDUCTIVITY IN METALS
DIELECTRICS AND MAGNETIC PROPERTIES OF
MATERIALS
1.1 UNIT – 1 :
CLASSICAL FREE ELECTRON THEORY
 Free electron concept. Classical free electron theory – Assumptions – Drift Velocity +
Mean Collision time,
 Mean free path – Relaxation time.
 Expression for drift velocity – Expression for electrical conductivity in metals.
 Effect of impurity and temperature on electrical resistivity of metals.
 Failures of classical free electron theory.
1.2 UNIT – 2 :
quantum free electron theory
 Assumptions – Fermi Dirac statistics – Fermi energy – Fermi factor – Density of states
(no derivation) .
 Expression for electrical resistivity temperature dependence of resistivity of metals.
 Merits of Quantum free electron theory.
1.3 UNIT – 3 :
DIELECTRIC PROPERTIES OF MATERIALS
 Dielectric materials – Polar and Non-polar dielectrics – Dielectric constant – Polarization
of dielectric materials.
 Types of Polarization.
 Equation for internal fields in liquids and solids (one dimensional).
 Clausius – Mossotti Equation.
 Ferro and Piezo electricity (qualitative)
1.4 UNIT – 4 :
MAGNETIC PROPERTIES OF MATERIALS
 Classification of magnetic material - Dia, Para and Ferromagnetic materials – Properties
B-H graph in ferromagnetic materials – Weiss Domain theory.
 Soft and Hard magnetic materials. Characteristic features and application.
MODULE – 4 : LASERS
1.1 UNIT – 1 :
LASER PRINCIPLE AND TYPES
 Laser – Characteristic features.
 Interaction of radiation with matter.
 Absorption. Emission.
 Einstein’s Co-efficient. Expression for energy density.
 Laser action. Condition for Laser action.
 Basic requisites for a laser system. Types of Laser. He-Ne Laser – Principle ,
Construction and Working of He-Ne laser.
1.2 UNIT – 2 :
APPLICATIONS OF LASER
 Laser welding. Laser cutting and Laser drilling. Holography – Principle of Holography
Recording and reconstruction of images
MODULE – 5 : SUPERCONDUCTIVITY AND OPTICAL FIBRES
1.1 UNIT -1 :
SUPERCONDUCTIVITY
 Temperature dependence of resistivity in super conducting materials. Characteristic
features of Super Conductors.
 Meissner Effect. Type I and Type II Superconductors, BCS theory (qualitative).
 Applications of Superconductors. Superconductive magnets – Maglev Vehicles and
SQUIDS.
1.2 UNIT – 2 :
OPTICAL FIBRES
 Optical fibres – Basic principle. Total internal reflection.
 Light propagation in Optical fibres. Condition for propagation. Angle of acceptance.
Numerical aperture – Expression. Modes of Propagation. Types of fibres.
 Application – Optical fiber Communication – Block diagram discussion of point-to-point
communication. Attenuation.
MODULE – 6 : CRYSTAL STRUYCTURE, NANO MATERIALS AND ULTRA
SONICS
1.1 UNIT – 1 :
CRYSTAL STRUCTURE
 Space lattice. Unit cell. Primitve cell. Lattice parameters.
 Crystal systems. Bravais lattice directions and planes in a crystal.
 Miller indices. Expression for interplanar spacing in terms of Miller indices.
 Coordination number. Atomics packing factor – Bragg’s Law.
1.2 UNIT -2 :
NANO MATERIALS
 Nano materials – Scaling of classical mechanical systems. Basic assumptions. Examples
scaling of electromagnetic systems. Basic assumptions – Corrections. Types of
Electromagnetic systems. Steady State systems. Time dependent systems
1.3 UNIT – 3 :
ULTRASONICS
 Ultrasonics – Basic properties. Non destructive testing of materials. Non-destructive
testing using Ultrasonics – Principle and procedure (pulse echo method).
TEXT BOOKS:
i.
Solid State Physics – Fifth Edition – S.O.Pillai – New Age International
ii.
Modern Physics – Arthur Beizer
iii.
Engineering Physics – Gaur and Gupta
REFERENCE BOOKS:
i.
A text book of Engineering Physics
– Dr. S. P. Basavaraju
ii.
A text book of Engineering Physics
– M. N. Avadhamulu and P.G. Kshirasagar.
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