GOKARAJU RANGARAJU
INSTITUTE OF ENGINEERING AND TECHNOLOGY
ENGINEERING PHYSICS
Unit-I
Unit-I
Crystal Structures: Lattice points, Space lattice, Basis, Bravias lattice, unit cell
and lattice parameters, Seven Crystal Systems with 14 Bravias lattices , Atomic
Radius, Co-ordination Number and Packing Factor of SC, BCC, FCC, Miller
Indices, Inter planer spacing of Cubic crystal system.
Defects in Crystals: Classification of defects, Point Defects: Vacancies,
Substitution, Interstitial, Concentration of Vacancies, Frenkel and Schottky
Defects, Edge and Screw Dislocations (Qualitative treatment), Burger’s Vector.
Principles of Quantum Mechanics: Waves and Particles, de Broglie Hypothesis, Matter Waves, Davisson and Germer’s Experiment, Heisenberg’s Uncertainty Principle, Schrodinger’s Time Independent Wave Equation-Physical Significance of the wave Function-Particle in One Dimensional Potential Box.
Principles of Quantum Mechanics: Waves and Particles, de Broglie Hypothesis, Matter Waves, Davisson and Germer’s Experiment, Heisenberg’s Uncertainty Principle, Schrodinger’s Time Independent Wave Equation-Physical Significance of the wave Function-Particle in One Dimensional Potential Box.
Unit-II
Electron Theory of Metals: Classical free electron theory, Derivation of Ohm’s
law, Mean free path, Relaxation time and Drift velocity, Failures of Classical free electron theory, Quantum free electron theory, Fermi-Dirac distribution, Fermi
energy, Failures of Quantum free electron theory.
Band Theory of Solids: Electron in a periodic potential, Bloch Theorem, KronigPenny
Model(Qualitative Treatment), origin of Energy Band Formation in Solids,
Classification of Materials into Conductors, Semi Conductors & Insulators,
Effective mass of an Electron.
Semiconductor Physics: Intrinsic Semiconductors and Carrier Concentration,
Extrinsic Semiconductors and Carrier Concentration, Fermi Level in Intrinsic and
Extrinsic Semiconductors, Hall Effect and Applications.
Unit-III
Dielectric Properties: Electric Dipole, Dipole Moment, Dielectric Constant,
Polarizability, Electric Susceptibility, Displacement Vector, Types of polarization:
Electronic, Ionic and Orientation Polarizations and Calculation of Polarizabilities
(Electronic & Ionic) -Internal Fields in Solids, Clausius -Mossotti Equation, Piezoelectricity
and Ferro- electricity.
Magnetic Properties: Magnetic Permeability, Magnetic Field Intensity, Magnetic
Field Induction, Intensity of Magnetization, Magnetic Susceptibility, Origin of
Magnetic Moment, Bohr Magnetron, Classification of Dia, Para and Ferro
Magnetic Materials on the basis of Magnetic Moment, Hysteresis Curve on the
basis of Domain Theory of Ferro Magnetism, Soft and Hard Magnetic Materials,
Ferrites and their Applications.
Unit-IV
Lasers: Characteristics of Lasers, Spontaneous and Stimulated Emission of
Radiation, Meta-stable State, Population Inversion, Einstein’s Coefficients and
Relation between them, Ruby Laser, Helium-Neon Laser, Semiconductor Diode
Laser, Applications of Lasers.
Fiber Optics: Structure and Principle of Optical Fiber, Acceptance Angle ,
Numerical Aperture, Types of Optical Fibers (SMSI,MMSI,MMGI), Attenuation in
Optical Fibers, Application of Optical Fibers, Optical fiber Communication Link
with block diagram.
Unit-V
Nanotechnology: Origin of Nanotechnology, Nano Scale, Surface to Volume
Ratio, Bottom-up Fabrication: Sol-gel Process; Top-down Fabrication: Chemical
Vapor Deposition, Physical, Chemical and Optical properties of Nano materials,
Characterization (SEM, EDAX), Applications.
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