PH2111 ENGINEERING PHYSICS – I 3 0 0
3
UNIT I ULTRASONICS 9
Introduction – Production –
magnetostriction effect - magnetostriction generator-
piezoelectric 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 9
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 9
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 9
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 9
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
th
Physics’, 6
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).
