# Download notes of ENGINEERING PHYSICS- II (NAS-202)

**Syllabus of ENGINEERING PHYSICS- II (NAS-202)**

Unit – I 07 Hrs

Crystal Structures and X-ray Diffraction:

Space lattice, basis, Unit cell, Lattice parameter, Seven crystal systems and Fourteen Bravais lattices,

Crystal-System Structure, Packing factor (cubic, body and face), Crystal structure of NaCl and diamond,

Lattice planes and Miller Indices, Reciprocal Lattice, Diffraction of X-rays by crystal, Laue’s

experiment, Bragg’s Law, Bragg’s spectrometer.

Unit – II 08 Hrs

Dielectric and Magnetic Properties of Materials:

Dielectric Properties: Dielectric constant and Polarization of dielectric materials, Types of Polarization

(Polarizability). Equation of internal fields in liquid and solid (One- Dimensional), Claussius MussotiEquation,

Frequency dependence of dielectric constant, Dielectric Losses, Important applications of

dielectric material,

Magnetic Properties: Magnetization, Origin of magnetic moment, Dia, para and ferro magnetism,

Langevin’s theory for diamagnetic material, Phenomena of hysteresis and its applications.

Unit – III 06 Hrs.

Electromagnetic Theory Displacement

Current, Equation of continuity, Maxwell’s Equations (Integral and Differential Forms), Poynting

theorem and Poynting vectors, EM – Wave equation and its propagation characteristics in free space, nonconducting

and in conducting media, Skin depth.

Unit – IV 09 Hrs

Physics of some Technologically important Materials

Semiconductors: Band Theory of Solids, density of states, Fermi-Dirac distribution, free carrier

density(electrons and holes), conductivity of semiconductors, Position of Fermi level in intrinsic and in

extrinsic semiconductors.

Superconductors: Temperature dependence of resistivity in superconducting materials, Effect of

magnetic field (Meissner effect), Temperature dependence of critical field, Type I and Type II

superconductors, BCS theory (Qualitative), High temperature superconductors and Applications of Superconductors.

Nano-Materials: Basic principle of nanoscience and technology, structure, properties and uses of

Fullerene and Carbon nanotubes, Applications of nanotechnology.

**Reference books:**

1. Concept of Modern Physics – by Beiser (Tata Mc-Graw Hill)

2. Solid State Physics – by C. Kittel, 7th edition (Wiley Eastern)

3. Materials Science and Engineering – by V. Raghavan (Prentice- Hall India)

4. Solid State Physics – by S.O. Pillai, 5th edition (New Age International)

5. Introduction to Electrodynamics – by David J. Griffith (PH I)

6. Applied Physics for Engineers- Neeraj Mehta (PHI Learning, New Delhi)