PH 9111 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 – thermal
insulation of buildings – 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 - 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.
TOTAL : 45 PERIODS
6
TEXT BOOKS:
1. Palanisamy, P.K., Engineering Physics, Scitech Publications (P) Lt, 2006.
2. Arumugam, M., Engineering Physics, Anuradha Publ., 2000.
REFERENCES:
1. Gaur R.K., and Gupta, S.L Engineering Physics, Dhanpat Raj Publ., 2003.
2. Sankar B.N., Pillai.S.O., Engineering Physics, New age International (P) Ltd, 2007
(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 – thermal
insulation of buildings – 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 - 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.
TOTAL : 45 PERIODS
6
TEXT BOOKS:
1. Palanisamy, P.K., Engineering Physics, Scitech Publications (P) Lt, 2006.
2. Arumugam, M., Engineering Physics, Anuradha Publ., 2000.
REFERENCES:
1. Gaur R.K., and Gupta, S.L Engineering Physics, Dhanpat Raj Publ., 2003.
2. Sankar B.N., Pillai.S.O., Engineering Physics, New age International (P) Ltd, 2007
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