ENGINEERING
PHYSICS
Semester :I/II CIE
Marks’ :40
Course
Code : 18PHY12/22
SEE Marks: 60
Teaching
Hours/week (L:T:P)
=: 3:2:0 Exam Hours: 03 Credits : 04
Course Learning Objectives:
This
course (18PHY12/22) will enable students to
·
Learn
the basic concepts in Physics which are very much essential in understanding
and solving engineering related challenges.
·
Gain the knowledge of newer concepts in modern
physics for the better appreciation of modern technology.
MODULE-I
Oscillations and Waves
Free Oscillations: Definition of SHM, derivation of
equation for SHM, Mechanical simple harmonic oscillators (mass suspended to
spring oscillator), complex notation and phasor representation of simple
harmonic motion. Equation of motion for free oscillations, Natural frequency of
oscillations.
Damped and forced oscillations: Theory of damped oscillations:
over damping, critical & under damping, quality factor. Theory of forced
oscillations and resonance, Sharpness of resonance. One example for mechanical
resonance.
Shock waves: Mach number, Properties of
Shock waves, control volume. Laws of conservation of mass, energy and momentum.
Construction and working of Reddy shock tube, applications of shock waves.
Numerical problem
(RBT
Levels : L1, L2 & L3)
MODULE-II
Elastic properties of materials:
Elasticity: Concept of elasticity,
plasticity, stress, strain, tensile stress, shear stress, compressive stress,
strain hardening and strain softening, failure (fracture/fatigue), Hooke’s law,
different elastic moduli: Poisson’s ratio, Expression for Young’s modulus (Y),
Bulk modulus (K) and Rigidity modulus (n) interms of and B. Relation between Y,
nand K, Limits of Poisson’s ratio.
Bending of beams: Neutral surface and neutral
plane, Derivation of expression for bending moment. Bending moment of a beam
with circular and rectangular cross section. Single cantilever, derivation of
expression for Young’s’ modulus.
Torsion of cylinder: Expression for couple per unit
twist of a solid cylinder (Derivation), Torsional pendulum-Expression for
period of oscillation. Numerical problems.
(RBT
Levels : L1, L2 & L3)
MODULE- III
Maxwell’s equations, EM waves and Optical
fibers
Maxwell’s equations: Fundamentals of vector calculus.
Divergence and curl of electric field and magnetic field (static), Gauss’
divergence theorem and Stokes’ theorem. Description of laws of electrostatics,
magnetism and Faraday’s laws of EMI. Current density & equation of
Continuity; displacement current (with derivation) Maxwell’s equations in
vacuum.
EM Waves: The wave equation in
differential form in free space (Derivation of the equation using Maxwell’s
equations), Plane electromagnetic waves in vacuum, their transverse nature,
polarization of EM waves (Qualitative).
Optical fibers: Propagation mechanism, angle of
acceptance. Numerical aperture. Modes of propagation and Types of optical
fibers. Attenuation: Causes of attenuation and Mention of expression for
attenuation coefficient. Discussion of block diagram of point to point
communication. Merits and demerits Numerical problems.
(RBT
Levels : L1 & L2)
MODULE IV
Quantum Mechanics and Lasers
Quantum mechanics: Introduction to Quantum
mechanics, Wave nature of particles, Heisenberg’s uncertainty principle and
applications (non confinement of electron in the nucleus), Schrodinger time
independent wave equation, Significance of Wave function, Normalization, Particle
in a box, Energy eigen values ofa particle in a box and probability densities.
Lasers: Review of spontaneous and
stimulated processes, Einstein’s coefficients (derivation of expression for
energy density). Requisites of a Laser system. Conditions for laser action.
Principle, Construction and working of CO, and semiconductor Lasers.
Application of Lasers in Defense (Laser range finder) and Engineering (Data
storage). Numerical problems
(RBT
Levels : L1, L2 & L3)
MODULE-V
Material
science
Quantum Free electron theory of
metals:
Review of classical free electron theory, mention of failures. Assumptions of
Quantum Free electron theory, Mention of expression for density of states,
Fermi-Dirac statistics (qualitative), Fermi factor, Fermi level, Derivation of
the expression for Fermi energy, Success of QFET.
Physics of Semiconductor: Fermi level in intrinsic
semiconductors, Expression for the concentration of electrons in the conduction band,
Hole concentration in valance band (only mention the expression), Conductivity
of semiconductors(derivation), Hall effect, Expression for Hall coefficient
(derivation)
Dielectric materials: polar and non-polar dielectrics,
internal fields in a solid, Clausius-Mossotti equation(Derivation), mention of
solid, liquid and gaseous dielectrics with one example each. Application of
dielectrics in transformers. Numerical problems.
(RBT
Levels : L1, L2 & L3)
Course
Outcomes:
Upon
completion of this course, students will be able to Understand various types of
oscillations and their implications, the role of Shock waves in various fields
and Recognize the elastic properties of materials for engineering applications.
2.
Realize
the interrelation between time varying electric field and magnetic field, the
transverse nature of the EM waves and their role in optical fiber
communication.
3.
Compute
Eigenvalues, Eigenfunctions, the momentum of Atomic and subatomic particles using
Time independent 1-D Schrodinger’s wave equation.
4.
Apprehend the theoretical background of laser, construction, and working of different types of
laser and its applications in different fields 5. | Understand various
electrical and thermal properties of materials like conductors, semiconductors
and dielectrics using different theoretical models.
Question
paper pattern:
Note:- The SEE question paper will be
set for 100 marks and the marks will be proportionately reduced to 60. ° The
question paper will have ten full questions carrying equal marks.
° Each
full question consisting of 20 marks.
°
There will be two full questions (with a maximum of four sub-questions) from
each module.
° Each
full question will have sub-question covering all the topics under a module.
° The
students will have to answer five full questions, selecting one full question
from each module.
Textbooks:
1. A Textbook of Engineering Physics- M.N. Avadhanulu and P.G. Kshirsagar, 10th revised Ed, S. Chand & Company Ltd, New Delhi.
2. Engineering Physics-Gaur and Gupta Dhanpat Rai Publications-2017.
3. Concepts of Modern Physics-Arthur Beiser: 6th Ed, Tata McGraw Hill Edu Pvt Ltd- New Delhi 2006.
Reference books:
1. Introduction to Mechanics, MK Verma: 2nd Ed, University Press(India) Pvt Ltd, Hyderabad 2009.
2. Lasers And Non-Linear Optics, BB laud, 3rd Ed, New Age International Publishers 2011.
3. Solid State Physics-S O Pillai, 8th Ed New Age International Publishers-
4. Shock waves made simple- Chintoo S Kumar, K Takayama, and KPJ Reddy: Willey India Pvt. Ltd., New Delhi, 2014.
5. Introduction to Electrodynamics, David Griffiths, 4th Ed, Cambridge University Press 2017.
Softcopy Textbook Links:
1. Solid State Physics S O Pillai download/view
2. Concepts Of Modern Physics (6th Edition) Arthur Beiser download/view
3. Engineering Physics M N Avadhanulu download/view
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