PH8151 ENGINEERING PHYSICS L T P C
(Common to all Branches of B.E./B.Tech.Programmes) 3 0 0 3
OBJECTIVE:
To introduce the basic physics concepts relevant to different branches of Engineering and
Technology.
UNIT I PROPERTIES OF MATTER 9
Elasticity - Poisson's ratio and relationship between moduli (qualitative) - Stress-strain diagram -
factors affecting elasticity - bending of beams - cantilever - bending moment - theory and
experiment of Young's modulus determination - Uniform and non-uniform bending - I shaped
girders - twisting couple - hollow cylinder - shaft - torsion pendulum - determination of rigidity
modulus- moment of inertia of a body (regular and irregular).
UNIT II ACOUSTICS AND ULTRASONICS 9
Classification of sound - loudness and intensity - Weber-Fechner Law - standard intensity and
intensity level - decibel - reverberation - reverberation time - rate of growth and decay of sound
intensity - derivation of Sabine's formula - absorption coefficient and its determination - factors
affecting acoustics of buildings : focussing, interference, echo, Echelon effect, resonance -
noise and their remedies. Ultrasonics - production – magnetostriction and piezoelectric
methods - detection of ultrasound - acoustic grating - industrial applications - NDT - Ultrasonic
method: scan modes and practice.
UNIT III THERMAL PHYSICS 9
Thermal expansion - thermal stress - expansion joints - bimetallic strips - thermal conductivity -
conductions in solids - Forbe's and Lees' disc methods - Rectilinear flow of heat through a rod -
flow of heat through a compound materials - radical flow of heat through a spherical shell -
thermal insulation of buildings – Laws of blackbody radiation: Kirchoffs law, Stephens law,
Wiens law, Raleigh-Jean law and Planks law (derivation). Laws of thermodynamics - Otto and
diesel engines and their efficiency - entropy - entropy of Carnot's cycle - reverse Carnot's cycle -
refrigerator.
UNIT IV APPLIED OPTICS 9
Interference - Michelson interferometer: construction, working, determination of wave length and
thickness - anti-reflection coating - air wedge and its application - Lasers - Einstein's coefficients
- CO2, Nd:YAG and semiconductor lasers - homo junction and hetro junction - construction and
working - applications - Optical fibres - classification (index & mode based) - principle and
propagation of light in optical fibres - acceptance angle and numerical aperture - fibre optic
communication system - active and passive sensors.
UNIT V SOLID STATE PHYSICS 9
Nature of bonding - growth of single crystals (qualitative) - crystal systems - crystal planes and
directions - expressions for interplanar distance - coordination number and packing factor for
simple structures: SC, BCC, FCC and HCP - structure and significance of NaCl, ZnS, diamond
and graphite - crystal imperfections: point defects, dislocations and stacking faults - unit cell,
Bravais space lattices - miller indices.
TOTAL : 45 PERIODS
www.annauniversityplus.com
(Common to all Branches of B.E./B.Tech.Programmes) 3 0 0 3
OBJECTIVE:
To introduce the basic physics concepts relevant to different branches of Engineering and
Technology.
UNIT I PROPERTIES OF MATTER 9
Elasticity - Poisson's ratio and relationship between moduli (qualitative) - Stress-strain diagram -
factors affecting elasticity - bending of beams - cantilever - bending moment - theory and
experiment of Young's modulus determination - Uniform and non-uniform bending - I shaped
girders - twisting couple - hollow cylinder - shaft - torsion pendulum - determination of rigidity
modulus- moment of inertia of a body (regular and irregular).
UNIT II ACOUSTICS AND ULTRASONICS 9
Classification of sound - loudness and intensity - Weber-Fechner Law - standard intensity and
intensity level - decibel - reverberation - reverberation time - rate of growth and decay of sound
intensity - derivation of Sabine's formula - absorption coefficient and its determination - factors
affecting acoustics of buildings : focussing, interference, echo, Echelon effect, resonance -
noise and their remedies. Ultrasonics - production – magnetostriction and piezoelectric
methods - detection of ultrasound - acoustic grating - industrial applications - NDT - Ultrasonic
method: scan modes and practice.
UNIT III THERMAL PHYSICS 9
Thermal expansion - thermal stress - expansion joints - bimetallic strips - thermal conductivity -
conductions in solids - Forbe's and Lees' disc methods - Rectilinear flow of heat through a rod -
flow of heat through a compound materials - radical flow of heat through a spherical shell -
thermal insulation of buildings – Laws of blackbody radiation: Kirchoffs law, Stephens law,
Wiens law, Raleigh-Jean law and Planks law (derivation). Laws of thermodynamics - Otto and
diesel engines and their efficiency - entropy - entropy of Carnot's cycle - reverse Carnot's cycle -
refrigerator.
UNIT IV APPLIED OPTICS 9
Interference - Michelson interferometer: construction, working, determination of wave length and
thickness - anti-reflection coating - air wedge and its application - Lasers - Einstein's coefficients
- CO2, Nd:YAG and semiconductor lasers - homo junction and hetro junction - construction and
working - applications - Optical fibres - classification (index & mode based) - principle and
propagation of light in optical fibres - acceptance angle and numerical aperture - fibre optic
communication system - active and passive sensors.
UNIT V SOLID STATE PHYSICS 9
Nature of bonding - growth of single crystals (qualitative) - crystal systems - crystal planes and
directions - expressions for interplanar distance - coordination number and packing factor for
simple structures: SC, BCC, FCC and HCP - structure and significance of NaCl, ZnS, diamond
and graphite - crystal imperfections: point defects, dislocations and stacking faults - unit cell,
Bravais space lattices - miller indices.
TOTAL : 45 PERIODS
www.annauniversityplus.com
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