# Applied Physics for CV Stream (BPHYC102/202)

## Applied Physics for CV Stream

### Module-1

Oscillations and Shock waves: Oscillations: Simple Harmonic motion (SHM), Differential equation for SHM (No derivation), Sprigs: Stiffness Factor and its Physical Significance, Series and Parallel combination of springs (Derivation), Types of Springs and their applications. Theory of Damped oscillations (Qualitative), Types of Damping (Graphical Approach). Engineering applications of Damped oscillations, Theory of Forced oscillations (Qualitative), Resonance, Sharpness of resonance.Numerical Problems.

Shock waves: Mach number and Mach Angle, Mach Regimes, Definition and Characteristics of Shock waves,Construction and working of Reddy Shock tube, Applications of Shock Waves, Numerical problems.

Pre-requisites: Basics of Oscillations

Self-learning: Simple Harmonic motion, Differential equation for SHM

### Module-2

Elasticity: Stress-Strain Curve, Stress hardening and softening. Elastic Moduli, Poisson’s ratio, Relation between Y, n and Ïƒ (with derivation), mention relation between K, Y and Ïƒ, limiting values of Poisson’s ratio. Beams, Bending moment and derivation of expression, Cantilever and I section girder and their Engineering Applications, Elastic materials (qualitative). Failures of engineering materials - Ductile fracture, Brittle fracture, Stress concentration, Fatigue and factors affecting fatigue (only qualitative explanation), Numerical problems.

Pre requisites: Elasticity,Stress & Strain

Self-learning: Stress-Strain Curve

### Module-3

Acoustics,RadiometryandPhotometry: Acoustics: Introduction to Acoustics, Types of Acoustics, Reverberation and reverberation time, Absorption power and Absorption coefficient, Requisites for acoustics in auditorium, Sabine’s formula (derivation), Measurement of absorption coefficient, Factors affecting the acoustics and remedial measures, Sound Insulation and itsmeasurements.Noise and its Measurements, Impact of Noise in Multi-storied buildings.

Radiometry and Photometry: Radiation Quantities, Spectral Quantities, Relation between luminance and Radiantquantities, Reflectanceand Transmittance, Photometry (cosinelaw and inverse square law).

Prerequisites:BasicsofSound,Waves&lightproperties.

Self-learning:Introductiontoacoustics.

### Module-4

Photonics: LASER:Properties of a LASER Beam, Interaction of Radiation with Matter, LASER action, Population Inversion,MetastableState,Requisites of a LASER System, Semiconductor LASER, LASER Range Finder, LIDAR, Road Profiling, BridgeDeflection, SpeedChecker, NumericalProblems.

OpticalFiber:Principle and Construction of Optical Fibers, Acceptance angle and Numerical Aperture (NA), Expression for NA,Modes of Propagation,Attenuation and Fiber Losses, Fiber Optic Displacement Sensor, Fiber Optic Temperature Sensor, Numerical Problems

Pre requisite: Propertiesof light.

Self-learning: Total Internal Reflection.

### Module-5

NaturalhazardsandSafety:Introduction, Earthquake, (general characteristics, Physics of earthquake, Richter scale of measurement and earthquakeresistant measures), Tsunami (causes for tsunami, characteristics, adverse effects, risk reduction measures,engineeringstructures to withstand tsunami), Landslide (causes such as excess rain fall, geological structure, human excavation etc.,types of land slide, adverse effects, engineering solution for landslides). Forest Fires and detection using remote sensing.Firehazardsandfireprotection,fireproofingmaterials,firesafetyregulationsandfirefightingequipment-Preventionandsafety measures.NumericalProblems.

Pre requisite: Oscillations.

Self-learning:Richterscale.

#### Suggested Learning Resources:

Books (Title of the Book/Name of the author/Name of the publisher/Edition and Year)

1. Materials Science and Engineering by R Balasubramaniam, second edition, Wiley India Pvt. Ltd. Ansari Road,Daryaganj, New Delhi-110002.

2. A Textbook of Engineering Physics by M .N. Avadhanulu, P G. Kshirsagar and T V S Arun Murthy, Eleventh edition, S Chand and Company Ltd. New Delhi-110055.

3. Engineering Physics by R. K. Gaur and S. L. Gupta, 2010 edition, Dhanpat Rai Publications Ltd., New Delhi-110002,

4. Building Science: Lighting and Accoustics, B. P. Singh and Devaraj Singh, Dhanpat Rai Publications (P) Ltc.,

5. Building Acoustics : Tor Eric Vigran, Taylor and Francis, 2008 Edition.

6. Photometry Radiometry and Measurements of Optical Losses, Micheal Bukshtab, Springer, 2nd edition.

7. Materials Science for Engineers by James F. Shackelford and Madanapalli K Muralidhara, sixth edition, Pearson Education Asia Pvt. Ltd., New Delhi.

8. Lasers and Non Linear Optics, B B Loud, New Age Internationals, 2011 edition

9. Shock waves made simple by Chintoo S Kumar, K Takayama and K P J Reddy: Willey India Pvt. Ltd, Delhi 2014.

10. An Introduction to Disaster Management, Natural Disastr & Man Made Hazards, S. Vaidyanathan, IKON Books P

11. Natural Hazards, Edward Bryant, Cambridge University, Press, 2nd Edition

12. Natural Hazards by Ramesh .P. Singh, CRC Press, Taylor and Francis group.

13. Disaster Education and Management, Rajendra Kumar Bhandari, Springer, India 2014

14. Principles of Fire Safety Engineering Understanding Fire & Fire Protection, Akhil Kumar Das, PHI Learning , II Edition.

#### Web links and Video Lectures (e-Resources):

Shock waves:https://physics.info/shock/

Stress-strain curves:https://web.mit.edu/course/3/3.11/www/modules/ss.pdf

Oscillations and waves :https://openstax.org › books › college-physics-2e

Earthquakes:www.asc-india.org

Earthquakes and Hazards:http://quake.usgs.gov/tsunami

Landslide hazards:http://landslides.usgs.gov

Activity Based Learning (Suggested Activities in Class)/ Practical Based learning

http://nptel.ac.in

https://swayam.gov.in

https://virtuallabs.merlot.org/vl_physics.html

https://www.myphysicslab.com

Laboratory Component:

Any Ten Experiments have to be completed from the list of experiments

Note: The experiments have to be classified into

a) Exercise

b) Demonstration

c) Structured Inquiry

d) Open Ended

Based on the convenience classify the following experiments into above categories. Select at least one simulation/spreadsheet activity.

List of Experiments

1. Determination of Young’s modulus of the material of the given bar Uniform Bending.

2. Determination of Rigidity modulus of the Material of the wire using Torsional Pendulum.

3. Study of Forced Mechanical Oscillations and Resonance.

4. Study of the frequency response of Series & Parallel LCR circuits.

5. Determination of Fermi Energy of the given Conductor.

6. Determination of Resistivity by Four Probe Method.

7. Determination of effective spring constant of the given springs in series and parallel combinations.

8. Determination of Young’s modlus of the material of the given bar Single Cantilever.

9. Determination of the the Moment of Inertia of the given irregular body using torsional pendulum.

10. Determination of Wavelength of Laser using Diffraction Grating.

11. Determination of Acceptance angle and Numerical Aperture of the given Optical Fiber.

12. Determination of the Radius of Curvature of the given Plano Convex Lens by setting Newton’s Rings.

13. Step Interactive Physical Simulations.

14. Study of motion using spread Sheets

15. Application of Statistics using Spread Sheets.