PH6151 ENGINEERING PHYSICS – I L T
P C
3
0 0 3
OBJECTIVES:
· To enhance
the fundamental knowledge in Physics and its applications relevant to various streams of Engineering and Technology.
UNIT I 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 – Diamond and graphite
structures (qualitative treatment) -
Crystal growth techniques –solution, melt (Bridgman and Czochralski) and vapour growth techniques (qualitative)
UNIT II PROPERTIES OF MATTER AND THERMAL PHYSICS 9
Elasticity- Hooke’s law
- Relationship between three modulii of elasticity
(qualitative) – stress -strain diagram – Poisson’s ratio –Factors affecting elasticity –Bending moment – Depression of a cantilever
–Young’s modulus by uniform
bending- I-shaped girders
Modes of heat transfer-
thermal conductivity- Newton’s law of cooling - Linear
heat flow
– Lee’s disc
method – Radial heat flow – Rubber tube method
– conduction through compound media (series and parallel)
UNIT III 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 – Properties of Matter waves – G.P Thomson experiment -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 IV ACOUSTICS AND ULTRASONICS
9
Classification of Sound- decibel- Weber–Fechner law – Sabine’s formula- derivation using growth and
decay method – Absorption Coefficient and its determination –factors affecting acoustics of buildings
and their remedies.
Production of ultrasonics by magnetostriction and
piezoelectric methods
-
acoustic grating
-Non
Destructive Testing – pulse echo system through transmission and reflection modes -
A,B and C –
scan displays, Medical applications - Sonogram
UNIT V PHOTONICS
AND
FIBRE OPTICS
9
Spontaneous and stimulated
emission- Population
inversion
-Einstein’s A and B coefficients - derivation. Types of lasers – Nd:YAG, CO2, Semiconductor lasers (homojunction &
heterojunction)- Industrial and
Medical Applications.
Principle and propagation of light in optical fibres – Numerical aperture and Acceptance angle - Types of optical fibres (material, refractive index, mode) – attenuation, dispersion, bending - Fibre Optical
Communication system
(Block diagram) - Active and passive fibre sensors- Endoscope.
TOTAL: 45 PERIODS
OUTCOMES:
· The students will have knowledge on the basics of physics related to properties of matter,
optics, acoustics etc., and they will apply these
fundamental principles to solve practical problems related to materials used for engineering applications.
TEXT BOOKS:
1. Arumugam
M. Engineering Physics. Anuradha publishers, 2010
2. Gaur R.K. and Gupta S.L. Engineering Physics. Dhanpat Rai publishers,
2009
3. Mani
Naidu S. Engineering Physics, Second Edition, PEARSON
Publishing, 2011.
REFERENCES:
1. Searls and Zemansky. University Physics, 2009
2. Mani
P. Engineering Physics I. Dhanam Publications, 2011
3. Marikani A. Engineering Physics. PHI Learning Pvt., India, 2009
4. Palanisamy P.K. Engineering Physics. SCITECH Publications, 2011
5. Rajagopal
K. Engineering Physics. PHI,
New
Delhi, 2011
6. Senthilkumar
G.
Engineering Physics I. VRB Publishers, 2011.
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