| PH6151 | ENGINEERING PHYSICS – I | L | T P C |
| 3 | 0 0 3 |
- 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, CO
2
Industrial and Medical Applications.
, Semiconductor lasers (homojunction & heterojunction)-
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.
OUTCOMES:
TOTAL: 45 PERIODS
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:
- Arumugam M. Engineering Physics. Anuradha publishers, 2010.
- Gaur R.K. and Gupta S.L. Engineering Physics. Dhanpat Rai publishers, 2009.
- Mani Naidu S. Engineering Physics, Second Edition, PEARSON Publishing, 2011.
REFERENCES:
- Searls and Zemansky. University Physics, 2009
- Mani P. Engineering Physics I. Dhanam Publications, 2011.
- Marikani A. Engineering Physics. PHI Learning Pvt., India, 2009.
- Palanisamy P.K. Engineering Physics. SCITECH Publications, 2011.
- Rajagopal K. Engineering Physics. PHI, New Delhi, 2011.
- Senthilkumar G. Engineering Physics I. VRB Publishers, 2011.
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