ENGINEERING PHYSICS syllabus, JNTU (2007-2008)

UNIT I

OPTICS : Interference - Superposition of waves - Young’s double slit experiment – Coherence - Interference in thin films by reflection - Newton’s rings - Diffraction - Fressnel and Fraunhofer diffractions - Fraunhofer diffraction at a Single slit – Double slit - Diffraction grating - Grating spectrum - Resolving power of a grating - Rayleigh’s criterion for resolving power – Polarization - Types of Polarization – Double refraction – Nicol prism.

UNIT II

ULTRASONICS : Introduction - Production of ultrasonic waves - Magnetostriction method – Piezo electric method - Detection of ultrasonic waves - Properties of ultrasonic waves - Use of ultrasonics for nondestructive testing - Applications of ultrasonics.

ACOUSTICS OF BUILDINGS: Basic requirement of acoustically good hall - 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 remedy.

UNIT III

MAGNETIC PROPERTIES: Permeability - Magnetization - Origin of magnetic moment – Classification of magnetic materials - Dia, para and ferro magnetism - Hysteresis curve - Soft and hard magnetic materials.

SUPERCONDUCTIVITY: General properties - Meissner effect - Penetration depth - Type I and Type II superconductors - Flux quantization – DC and AC Josephson effect –BCS Theory - Applications of superconductors.

UNIT IV

CRYSTAL STRUCTURES AND X-RAY DIFFRACTION: Introduction -Space lattice - Basis - Unit cell - Lattice parameter - Bravais lattices – Crystal systems - Structure and packing fractions of Simple cubic - Body centered cubic – Face centered cubic crystals - Directions and planes in crystals – Miller indices - Separation between successive [h k l] planes - Diffraction of X-rays by crystal planes - Bragg’s law - Laue method - Powder method.

UNIT V

LASERS : Introduction - Characteristics of lasers - Spontaneous and stimulated emission of radiation - Einstein’s coefficients - Population inversion - Ruby laser - Helium-Neon laser – CO₂ laser - Semiconductor laser - Applications of lasers in industry, scientific and medical fields.

UNIT VI

FIBER OPTICS AND HOLOGRAPHY: Introduction - Principle of optical fiber - Acceptance angle and acceptance cone - Numerical aperture – Types of optical fibers and refractive index profiles – Attenuation in optical fibers - Application of optical fibers – Basic principles of holography – Construction and reconstruction of image on hologram – Applications of holography.

UNIT VII

DIELECTRIC PROPERTIES: Introduction - Dielectric constant - Electronic, ionic and orientational polarizations - Internal fields in solids – Clausius - Mossotti equation – Dielectrics in alternating fields – Frequency dependence of the polarizability - Ferro and Piezo electricity.

THERMAL PROPORTIES : Introduction - Specific Heat of Solids – Einstein Model – Debye Model – Lattice Vibrations – Phonons – Thermal Conductivity.

UNIT VIII

SCIENCE & TECHNOLOGY OF NANOMATERIALS: Introduction to Nano materials - Basic principles of Nanoscience & Technology – Fabrication of nano materials – Physical & chemical properties of nanomaterials – Carbon nanotubes – Applications of nanotechnology.

TEXT BOOKS :

1. Physics Volume 2 by Halliday, Resnick and Krane; John Wiley & Son.

2. Applied Physics 2^nd Edition by Dr. P. Appala Naidu & Dr. M. Chandra Shekar V.G.S. Book links.

3. Engineering Physics by R.K.Gaur & S.L. Gupta; Dhanpat Rai and Sons.

REFERENCES:

1. Nanotechnology by Mark Ratner and Daniel Ratner, Pearson Education.

2. Introduction to solid state physics by C. Kittel; Wiley Eastern Ltd.

3. Materials Science and Engineering by V. Raghavan; Prentice-Hall India.

4. Engineering Physics by Dr. M. Arumugam; Anuradha Agencies.

5. Nanomaterials by A.K. Bandyopadhyay; New Age International Publishers.

6. Engineering Physics by M.N. Avadhanulu & P.G. Kshirasagar; S. Chand & Company Ltd.