# PH8151 ENGINEERING PHYSICS [ R – 2017 ] | Important Questions | Question bank | Syllabus | Model and Previous Question papers | Download PDF

## PH8151 ENGINEERING PHYSICS

Subject Information :

Title
Details
University
Anna University
Department
B.E / B.tech [  Common for all Departments ]
Semester
1 st sem
Year
1 st year
Regulation
R2017
Subject Code
PH8151
Subject Name
ENGINEERING PHYSICS

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PH8151 ENGINEERING PHYSICS | Important  Questions

PH8151 ENGINEERING PHYSICS  Questions Papers :

PH6151 Engineering Physics I Previous Year model Question Papers

PH2111  Engineering Physics I Previous Year model Question Papers

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### PH8151 ENGINEERING PHYSICS [ SYLLABUS ( R – 2017 ) ]

UNIT I PROPERTIES OF MATTER  9

Elasticity – Stress-strain diagram and its uses – factors affecting elastic modulus and tensile
strength – torsional stress and deformations – twisting couple – torsion pendulum: theory and
experiment – bending of beams – bending moment – cantilever: theory and experiment – uniform
and non-uniform bending: theory and experiment – I-shaped girders – stress due to bending in
beams.

UNIT II WAVES AND FIBER OPTICS  9

Oscillatory motion – forced and damped oscillations: differential equation and its solution – plane
progressive waves – wave equation. Lasers : population of energy levels, Einstein’s A and B
coefficients derivation – resonant cavity, optical amplification (qualitative) – Semiconductor
lasers: homojunction and heterojunction – Fiber optics: principle, numerical aperture and
acceptance angle – types of optical fibres (material, refractive index, mode) – losses associated
with optical fibers – fibre optic sensors: pressure and displacement.

UNIT III THERMAL PHYSICS              9

Transfer of heat energy – thermal expansion of solids and liquids – expansion joints – bimetallic
strips – thermal conduction, convection and radiation – heat conductions in solids – thermal
conductivity – Forbe’s and Lee’s disc method: theory and experiment – conduction through
compound media (series and parallel) – thermal insulation – applications: heat exchangers,
refrigerators, ovens and solar water heaters.

UNIT IV QUANTUM PHYSICS                9

Black body radiation – Planck’s theory (derivation) – Compton effect: theory and experimental
verification – wave particle duality – electron diffraction – concept of wave function and its
physical significance – Schrödinger’s wave equation – time independent and time dependent
equations – particle in a one-dimensional rigid box – tunnelling (qualitative) – scanning tunnelling
microscope.

UNIT V CRYSTAL PHYSICS                9
Single crystalline, polycrystalline and amorphous materials – single crystals: unit cell, crystal
systems, Bravais lattices, directions and planes in a crystal, Miller indices – inter-planar
distances – coordination number and packing factor for SC, BCC, FCC, HCP and diamond
structures – crystal imperfections: point defects, line defects – Burger vectors, stacking faults –
role of imperfections in plastic deformation – growth of single crystals: solution and melt growth

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