PH6151 Engineering Physics 1 syllabus
UNIT I CRYSTAL PHYSICS
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
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
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
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
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.
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