UNIT I ULTRASONICS
Introduction – Production – magnetostriction effect - magnetostriction generatorpiezoelectric
effect - piezoelectric generator- Detection of ultrasonic waves properties –
Cavitations - Velocity measurement – acoustic grating - Industrial applications – drilling,
welding, soldering and cleaning – SONAR - Non Destructive Testing – pulse echo
system through transmission and reflection modes - A,B and C –scan displays, Medical
applications - Sonograms
UNIT II LASERS
Introduction – Principle of Spontaneous emission and stimulated emission. Population
inversion, pumping. Einsteins A and B coeffcients - derivation. Types of lasers – He-Ne,
CO2 , Nd-YAG, Semiconductor lasers (homojunction & heterojunction) Qualitative
Industrial Applications - Lasers in welding, heat treatment, cutting – Medical applications
- Holography (construction & reconstruction).
UNIT III FIBER OPTICS & APPLICATIONS
Principle and propagation of light in optical fibres – Numerical aperture and Acceptance
angle - Types of optical fibres (material, refractive index, mode) – Double crucible
technique of fibre drawing - Splicing, Loss in optical fibre – attenuation, dispersion,
bending - Fibre optical communication system (Block diagram) - Light sources -
Detectors - Fibre optic sensors – temperature & displacement - Endoscope.
UNIT IV QUANTUM PHYSICS
Black body radiation – Planck’s theory (derivation) – Deduction of Wien’s displacement
law and Rayleigh – Jeans’ Law from Planck’s theory – Compton effect. Theory and
experimental verification – Matter waves – Schrödinger’s wave equation – Time
independent and time dependent equations – Physical significance of wave function –
Particle in a one dimensional box - Electron microscope - Scanning electron microscope
- Transmission electron microscope.
UNIT V CRYSTAL PHYSICS
Lattice – Unit cell – Bravais lattice – Lattice planes – Miller indices – d spacing in cubic
lattice – Calculation of number of atoms per unit cell – Atomic radius – Coordination
number – Packing factor for SC, BCC, FCC and HCP structures – NaCl, ZnS, diamond
and graphite structures – Polymorphism and allotropy - Crystal defects – point, line and
surface defects- Burger vector.
TOTAL: 45 PERIODS
TEXT BOOKS:
1. R. K. Gaur and S.C. Gupta, ‘Engineering Physics’ Dhanpat Rai Publications, New
Delhi(2003)
2. M.N. Avadhanulu and PG Kshirsagar, ‘A Text book of Engineering Physics’,
S.Chand and company, Ltd., New Delhi, 2005.
REFERENCES:
1. Serway and Jewett, ‘Physics for Scientists and Engineers with Modern Physics’, 6
th
Edition, Thomson Brooks/Cole, Indian reprint (2007)
2. Rajendran, V and Marikani A, ‘Engineering Physics’ Tata McGraw Hill Publications
Ltd, III Edition, New Delhi, (2004).
3. Palanisamy, P.K., ‘Engineering Physics’ Scitech publications, Chennai, (2007).
4. Jayakumar. S, ‘Engineering Physics’, R.K. Publishers, Coimbatore, (2003).
5. Chitra Shadrach and Sivakumar Vadivelu, ‘Engineering Physics’, Pearson Education,
New Delhi, (2007).
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