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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
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ENGINEERING PHYSICS
LECTURE NOTES
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SANGEETHA MAHENDRAKAR
Asst. Professor Of Physics
GNITC, Hyderabad.
1|ENGINEERING PHYSICS

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
I Year B.Tech.
ENGINEERING PHYSICS
UNIT-I
1. Crystallography: Ionic Bond, Covalent Bond, Metallic Bond, Hydrogen Bond, Vander-Waal's Bond, Calculation of
Cohesive Energy of a diatomic molecule;Space Lattice, Unit Cell, Lattice Parameters, Crystal Systems,Bravais Lattices, ,
Atomic Radius, Co-ordination Number and Packing Factor of SC, BCC, FCC, Miller Indices, Crystal Planes and Directions,
Inter Planar Spacing of Orthogonal CrystalSystems, Structures of Diamond and NaCl.
2. X-ray Diffraction & Defects in Crystals:Bragg's Law, X- ray Diffraction methods: Laue Method, Powder Method;
Point Defects: Vacancies, Substitutional, Interstitial, Frenkel and Schottky Defects,line Defects (Qualitative), Burger's
Vector.
UNIT-II
3.Principles of Quantum Mechanics: Waves and Particles, de Broglie Hypothesis, Matter Waves,Davisson and Germer's
Experiment, Heisenberg's Uncertainty Principle,Schrödinger's Time Independent Wave Equation - Physical Significance of
the Wave Function – Infinite squqre well Potential extension to three dimensions.
4. Elements of Statistical Mechanics& Electron theory of Solids:Phase space, Ensembles, Micro Canonical, Canonical
and Grand Canonical Ensembles - Maxwell-Boltzman, Bose-Einstein and Fermi-Dirac Statistics(Qualitative Treatment),
Concept of Electron Gas, Density of States, Fermi Energy;Electron in a periodic Potential, Bloch Theorem, Kronig- Penny
Model (Qualitative Treatment), E-K curve Origin of Energy Band Formation in Solids, .Concept of Effective Mass of an
Electron,Classification of Materials into Conductors, Semi Conductors & Insulators.
UNIT- III
5. Dielectric Properties: Electric Dipole, Dipole Moment, Dielectric Constant, Polarizability, ElectricSusceptibility,
Displacement Vector, Electronic, Ionic and Orientation Polarizations and Calculation ofPolarizabilities: Ionic and
Electronic - Internal Fields in Solids, Clausius - Mossotti Equation, Piezo-electricity, Pyro-electricity and Ferroelectricity.
6. Magnetic Properties& Superconducting Properties: Permeability, Field Intensity, Magnetic Field Induction,
Magnetization, MagneticSusceptibility, Origin of Magnetic Moment, Bohr Magneton, Classification of Dia, Para and
Ferro MagneticMaterials on the basis of Magnetic Moment, Domain Theory of Ferro Magnetism on the basis of
HysteresisCurve, Soft and Hard Magnetic Materials, Properties of Anti-Ferro and Ferri Magnetic Materials, Ferrites
and their Applications; Superconductivity, Meissner Effect, Effect of Magnetic field, Type-I and Type-II
Superconductors, Applications of Superconductors.
UNIT-IV
7. Optics: Interference-Interference in thin films (Reflected light), Newton rings experiment-Fraunhofer diffraction due
to single slit, N-slits, Diffraction grating experiment, Double refraction- construction and working, Nicol’s prism.
8. Lasers& Fiber Optics: Characteristics of Lasers, Spontaneous and Stimulated Emission of Radiation, Einstein's
Coefficients and Relation between them,Population Inversion, Lasing Action Ruby Laser,Helium-Neon Laser,
Semiconductor Diode Laser, Applications of Lasers;
Principle of Optical Fiber, Construction of fiber, Acceptance Angle and Acceptance Cone, Numerical Aperture,Types of
Optical Fibers: Step Index and Graded Index Profiles, Attenuation in Optical Fibers, Application of OpticalFiber in
communication systems.
2|ENGINEERING PHYSICS

UNIT-V
9. Semiconductor Physics: Fermi Level in Intrinsic and Extrinsic Semiconductors, Calculation of Carrier Concentration in
Intrinsic and Extrinsic Semiconductors,Direct & Indirect Band Gap Semiconductors, Hall Effect. Formation of PN Junction,
Open Circuit PN Junction, EnergyDiagram of PN Diode, Diode Equation , I-V Characteristics of PN Junction Diode, Solar
cell, LED and Photo Diodes. Acoustics of Buildings & Acoustic Quieting:Reverberation and Time of Reverberation,
Sabine's Formula for Reverberation Time,Measurement of Absorption Coefficient of a Material, Factors Affecting the
Architectural Acoustics and their Remedies.
10.Nanotechnology: Origin of Nanotechnology, Nano Scale, Surface to Volume Ratio, QuantumConfinement, BottomupFabrication:Sol-gel,Top-down Fabrication:Chemical Vapour Deposition, Characterization byTEM.
TEXT BOOKS:
1. Engineering Physics, K. Malik, A. K. Singh, Tata Mc Graw Hill Book Publishers.
2. Engineering Physics, V. Rajendran, Tata Mc Graw Hill Book Publishers.
REFERENCES:
1. Fundamentals of Physics, David Halliday, Robert Resnick, Jearl Walker by John Wiley & Sons
2. Sears and Zemansky's University Physics (10th Edition) by Hugh D. Young Roger A. Freedman, T. R.Sandin, A. Lewis
FordAddison-Wesley Publishers;
3. Applied Physics for Engineers – P. Madhusudana Rao (Academic Publishing company, 2013)
4. Solid State Physics – M. Armugam (Anuradha Publications).
5. Modern Physics – R. Murugeshan & K. Siva Prasath – S. Chand & Co. (for Statistical Mechanics).
6. A Text Book of Engg Physics– M. N. Avadhanulu & P.G.Khsirsagar– S.Chand & Co(foracoustics).
7. Modern Physics by K. Vijaya Kumar, S. Chandralingam: S. Chand & Co.Ltd
8. Nanotechnology – M.Ratner & D. Ratner (Pearson Ed.).
9. Introduction to Solid State Physics – C. Kittel (Wiley Eastern).
10. Solid State Physics – A.J. Dekker (Macmillan).
11. Applied Physics – Mani Naidu Pearson Education.
3|ENGINEERING PHYSICS

CONTENTS
UNIT-I
Page No.
Chapter-1: Crystallography-----------------------------------------------------------05-33
Chapter-2: X-ray Diffraction & Defects in Crystals
------------------------------34-50
UNIT- II
Chapter-3: Principles of Quantum Mechanics
-----------------------------------51-63
Chapter-4: Elements of Statistical Mechanics& Electron theory of Solids -------64-82
UNIT- III
Chapter-5: Dielectric Properties
-------------------------------------------------83-93
Chapter-6: Magnetic Properties & Superconducting Properties ----------------94-109
UNIT- IV
Chapter-7: Optics ---------------------------------------------------------------------110-126
Chapter-8: Lasers & Fiber Optics ----------------------------------------------------127-151
UNIT- V
Chapter-9: Semiconductor Physics,Acoustics of Buildings&Acoustic Quieting--152-186
Chapter-10: Nanotechnology --------------------------------------------------------187-200
*JNTUH Previous Mid Papers
*Model Mid Papers (For the academic year 2013-14)
*JNTUH Previous External Papers
*Model External Papers (New pattern, for the academic year 2013-14)-------- 200-216
4|ENGINEERING PHYSICS

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