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Engineering physics
15PHY12
Engineering Physics
IA Marks
: 20
Number of Lecture :04
Hours/Week
Exam Marks
:80
Total Number of :50
Lecture Hours
Exam Hours
:03
Subject Code
:15PHY12/15PHY22
CREDITS - 04
COURSE OBJECTIVES: The Objective of this course is to make students learn and
understand basic concepts and principles of physics to analyze practical engineering
problems and apply its solutions effectively and meaningfully. To understand building
up of models, design issues, practical oriented skills and problem solving challenges are
the great task of the course. To know about shock waves and practical applications is the
prime motto to introduce new technology at the initial stage of Engineering.
Module – 1
Modern Physics and Quantum Mechanics :
Black body radiation spectrum, Assumptions of quantum theory of radiation,Plank’s law,
Weins law and Rayleigh Jeans law, for shorter and longerwavelength limits.Wave
Particle dualism, deBroglie hypothesis.Compton Effectand its Physical significance.
Matter waves and their Characteristic properties,Phase velocity and group velocity.
Relation between phase velocity and groupvelocity, Relation between group velocity and
particle velocity.
Heisenberg’s uncertainty principle and its application, (Non-existence of electron
in nucleus).Wave function, Properties and physical significance of wave function,
Probability density and Normalization of wave function.Setting up of one dimensional
time independent Schrodinger wave equation. Eigen values and Eigen functions.
Application of Schrodinger wave equation. Energy Eigen values and Eigen functions for
a particle in a potential well of infinite depth and for free particle.
10 Hours
Department of physics SJBIT.
Page 1

Engineering physics
15PHY12
Module – 2
Electrical Properties of Materials:
Free–electron concept (Drift velocity, Thermal velocity, Mean collision time,Mean free
path, relaxation time). Failure of classical free electron theory.Quantum free electron
theory, Assumptions, Fermi factor, density of states(qualitative only), Fermi–Dirac
Statistics. Expression for electricalconductivity based on quantum free electron theory,
Merits of quantum freeelectron theory.
Conductivity of Semi conducting materials, Concentration of electrons andholes
in intrinsic semiconductors, law of mass action. Temperature dependence of resistivity in
metals and superconductingmaterials. Effect of magnetic field (Meissner effect).Type-I
and
Type-IIsuperconductors–Temperature
dependence
of
critical
field.BCS
theory(qualitative).High temperature superconductors.Applications ofsuperconductors –
.Maglev vehicles.
10 Hours
Module – 3
Lasers and Optical Fibers :
Einstein’s
coefficients
(expression
for
energy
density).Requisites
of
a
Lasersystem.Condition for laser action.Principle, Construction and working ofCO2 laser
and semiconductor Laser. Applications of Laser – Laser welding,cutting and drilling.
Measurement of atmospheric pollutants.Holography–Principle of Recording and
reconstruction of images,.
Propagation mechanis in optical fibers. Angle of acceptance.Numericalaperture.
Types of optical fibers and modes of propagation. Attenuation, Block diagram discussion
of point to point communication, applications.
10 Hours
Module – 4
Crystal Structure :
Space lattice, Bravais lattice–Unit cell, primitive cell.Lattice parameters.Crystal
systems.Direction and planes in a crystal.Miller indices. Expressionfor inter – planar
spacing. Co-ordination number. Atomic packing factors(SC,FCC, BCC). Bragg’s law,
Determination of crystal structure using Bragg’sX–ray difractometer. Polymarphism and
Allotropy. Crystal Structure of Diamond, qualitative discussion of Pervoskites.
10 Hours
Department of physics SJBIT.
Page 2

Engineering physics
15PHY12
Module – 5
Shock waves and Science of Nano Materials:
Definition of Mach number, distinctions between- acoustic, ultrasonic, subsonic and
supersonic waves.Description of a shock wave and its applications. Basics of
conservation of mass, momentum and energy -derivation of normal shock relationships
using simple basic conservationequations (Rankine-Hugonit equations). Methods of
creating shock wavesin the laboratory using a shock tube, description of hand operated
Reddyshock tube and its characteristics. Introduction to Nano Science, Density of states
in 1D, 2D and 3D structures. Synthesis : Top–down and Bottom–up approach, Ball
Milling and Sol–Gelmethods.CNT – Properties, synthesis: Arc discharge, Pyrolysis
methods,
Applications.Scanning
Electron
microscope:
Principle,
working
and
applications.
10 Hours
Text Books
1. Wiley precise Text, “Engineering Physics”, Wiley India Private Ltd., New
Delhi. Book series – 2014,
2. Dr.M.N. Avadhanulu, Dr.P.G.Kshirsagar, “Text Book of Engineering
Physics”, S Chand Publishing, New Delhi – 2012.Reference Books
Reference Books :
1. Wiley precise Text, “Engineering Physics”, Wiley India Private Ltd., New
Delhi. Book series – 2014,
2. S.O.Pillai, “Solid State Physics”, New Age International. Sixth Edition
3. ChintooS.Kumar ,K.Takayana and K.P.J.Reddy,“Shock waves made
simple”, Willey India Pvt. Ltd. New Delhi,2014
4. A. Marikani, “Engineering Physics”, PHI Learning Private Limited,
Delhi–2013
5. Prof. S. P. Basavaraju, “Engineering Physics”, Subhas Stores,
Bangalore–2
6. V. Rajendran, “Engineering Physics”, Tata Mc.Graw Hill Company Ltd.,
New Delhi - 2012
7. S.ManiNaidu,“Engineering Physics”, Pearson India Limited – 2014.
Department of physics SJBIT.
Page 3

Engineering physics
15PHY12
Module
1
2
3
4
5
Index
Modern Physics and Quantum Mechanics
Electrical Properties of Materials
Lasers and Optical Fibers
Crystal structure
Page
no
6
37
76
108
Mhaocgknw
etaivcesParnodpSecrietnieces ooffNm
S
anaote
Mraitaelrsials
133
Module-1
Department of physics SJBIT.
Page 4

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