ENGINEERING PHYSICS CBCS Syllabus Question Papers and Notes

ENGINEERING PHYSICS
15PHY12/15PHY22


 VTU CAMPUS

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 longer  wavelength  limits.  Wave  Particle  dualism,  deBroglie  hypothesis.Compton  Effect.  Matter  waves  and  their  Characteristic  properties,Definition  of Phase velocity and  group  velocity, Relation between phase velocity and group velocity, Relation between group velocity and particle velocity.Heisenberg’s uncertainity principle and its application, (Non-existence of electron  in  the  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  for a particle in a potential well of infinite depth and for free particle.
10 Hours

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 electrical conductivity based on quantum free electron theory,Merits of quantum free electron theory.Conductivity  of  Semi  conducting  materials,  Concentration  of  electrons and holes in intrinsic semiconductors, law of mass action.Temperature  dependence  of  resistivity  in  metals  and superconducting materials.  Effect  of  magnetic  field  (Meissner  effect).  Type  I  and  Type  II superconductors–Temperature  dependence  of  critical field.  BCS  theory(qualitative).   High   temperature   superconductors.   Applications   of superconductors –. Maglev vehicles
10 Hours

Module -3

Lasers and Optical Fibers
Einstein’s  coefficients  (expression  for  energy  density).  Requisites  of  a Laser  system.  Condition  for  laser  action.  Principle,  Construction  and working  of  CO2laser and  semiconductor Laser. Applications  of  Laser  –Laser  welding,  cutting  and  drilling.  Measurement  of atmospheric pollutants.  Holography–Principle  of  Recording  and  reconstruction  of images.Propagation mechanism in optical fibers. Angle of acceptance. Numerical aperture. 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.Expression  for  inter  –  planar  spacing.  Co-ordination  number.  Atomic packing  factors  (SC,FCC,BCC).  Bragg’s  law,  Determination  of  crystal structure using Bragg’s X–ray difractometer. Polymarphism and Allotropy.Crystal Structure of Diamond, qualitative discussion of Pervoskites.
10 Hours 

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.Normal shock equations (Rankine-Hugonit equations). Method of creating shock waves in the laboratory using a shock tube, description  of hand operated Reddy shock tube and its characteristics.Introduction  to  Nano  Science,    Density  of  states  in1D,  2D  and  3Dstructures. Synthesis : Top–down and Bottom–up approach, Ball Millingand Sol–Gel methods.CNT  –  Properties,  synthesis:  Arc  discharge,  Pyrolysis  methods,Applications.Scanning Electron microscope: Principle, working and applications.
10  Hours

 Course outcomes:

On Completion of this course, students are able to
•  Learn  and  understand  more  about  basic  principles  and  to  develop  problem  solving skills and implementation in technology.
•  Gain Knowledge about Modern physics and quantum mec  hanics will update  the basic concepts to implement the skills.
 •  Study  of  material  properties  and  their  applications is  the  prime  role  to  understand and use in engineering applications and  studies.
 •  Study Lasers and Optical fibers and its applications are to import knowledge  and  to  develop  skills  and  to  use  modern  instruments  in  the  engineering  applications.
•  Understand Crystal structure and applications are to boost the technical skills  and its applications.     •  Expose shock waves concept and its applications will bring latest technology to  the students at the first year level to develop research orientation programs at  higher semester level.
•  Understand basic concepts of nano science and technology.

Question paper pattern:

•The question paper will have ten questions.
•Each full Question consisting of 16 marks
•There will be 2 full questions(with a maximum of four sub questions) from each module.
•Each  full  question  will  have  sub  questions  covering all  the  topics  under  a module.
•The students will have to answer 5 full questions, selecting one full question from each module.

Text  Books:  
1.Wiley  precise  Text,  Engineering  Physics,Wiley  India  Private  Ltd.,  NewDelhi.  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:  
1. S.O.Pillai,  Solid State Physics, New Age International. Sixth Edition. 
2. Chintoo  S  Kumar, K  Takayana  and  K  P  J  Reddy,  Shock  waves  made simple,  Willey India Pvt. Ltd. New Delhi,2014
3. A  Marikani, Engineering  Physics,  PHI  Learning  Private  Limited, Delhi  -2013  
4. Prof. S. P. Basavaraju,  Engineering Physics,  Subhas Stores, Bangalore – 2
5. V Rajendran ,  Engineering Physics, Tata Mc.Graw Hill Company Ltd., NewDelhi -2012 
6. S Mani Naidu,  Engineering Physics, Pearson India Limited – 2014