PH6151 Engineering Physics 1 syllabus

UNIT I CRYSTAL PHYSICS
Lattice – Unit cellBravais latticeLattice planesMiller 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 structuresDiamond and graphite structures (qualitative treatment)-Crystal growth techniquessolution, melt (Bridgman and Czochralski) and vapour growth techniques(qualitative)

UNIT II PROPERTIES OF MATTER AND THERMAL PHYSICS
Elasticity- Hooke’s lawRelationship between three modulii of elasticity (qualitative) – stress -strain diagramPoisson’s ratioFactors affecting elasticityBending momentDepression of a cantileverYoung’s modulus by uniform bendingI-shaped girders Modes of heat transfer- thermal conductivityNewton’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 radiationPlanck’s theory (derivation) – Deduction of Wien’s displacement law and Rayleigh – Jeans’ Law from Planck’s theoryCompton effect. Theory and experimental verification –Properties of Matter wavesG.P Thomson experimentSchrödinger’s wave equation – Time independent and time dependent equations – Physical significance of wave functionParticle in a one dimensional boxElectron microscopeScanning electron microscopeTransmission electron microscope.

UNIT IV ACOUSTICS AND ULTRASONICS
Classification of Sound– decibel- Weber–Fechner lawSabine’s formula– derivation using growth and decay methodAbsorption Coefficient and its determination –factors affecting acoustics of buildings and their remedies.Production of ultrasonics by magnetostriction and piezoelectric methodsacoustic gratingNon 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 emissionPopulation 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, bendingFibre Optical Communication system (Block diagram) – Active and passive fibre sensors- Endoscope.

engineering physics 1 syllabus

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