UPH004: APPLIED PHYSICS
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3 |
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4.5 |
Course Objectives: Introduce the laws of oscillators, acoustics of buildings, ultrasonics, electromagnetic waves, wave optics, lasers, and quantum mechanics and demonstrate their applications in technology. Student will learn measurement principles and their applications in investigating physical phenomenon.
Oscillations and Waves: Oscillatory motion and damping, Applications - Electromagnetic damping – eddy current; Acoustics: Reverberation time, absorption coefficient, Sabine’s and Eyring’s formulae (Qualitative idea), Applications - Designing of hall for speech, concert, and opera; Ultrasonics: Production and Detection of Ultrasonic waves, Applications - green energy, sound signaling, dispersion of fog, remote sensing, Car’s airbag sensor.
Electromagnetic Waves: Scalar and vector fields; Gradient, divergence, and curl; Stokes’ and Green’s theorems; Concept of Displacement current; Maxwell’s equations; Electromagnetic wave equations in free space and conducting media, Application - skin depth.
Optics: Interference: Parallel and wedge-shape thin films, Newton rings, Applications as Non-reflecting coatings, Measurement of wavelength and refractive index. Diffraction: Single and Double slit diffraction, and Diffraction grating, Applications - Dispersive and Resolving Powers. Polarization: Production, detection, Applications – Anti-glare automobile headlights, Adjustable tint windows. Lasers: Basic concepts, Laser properties, Ruby, HeNe, and Semiconductor lasers, Applications – Optical communication and Optical alignment.
Quantum Mechanics: Wave function, Steady State Schrodinger wave equation, Expectation value, Infinite potential well, Tunneling effect (Qualitative idea), Application - Quantum computing.
Laboratory Work:
1 Determination of damping effect on oscillatory motion due to various media.
2 Determination of velocity of ultrasonic waves in liquids by stationary wave method.
3 Determination of wavelength of sodium light using Newton’s rings method.
4 Determination of dispersive power of sodium-D lines using diffraction grating.
5 Determination of specific rotation of cane sugar solution.
6 Study and proof of Malus’ law in polarization.
7 Determination of beam divergence and beam intensity of a given laser.
8 Determination of displacement and conducting currents through a dielectric.
9 Determination of Planck’s constant.
Micro Project: Students will be asked to solve physics based problems/assignments analytically or using computer simulations, etc.
Course Learning Outcomes (CLO):
Upon completion of this course, students will be able to:
1. demonstrate a detailed knowledge of oscillations, ultrasonics, electromagnetic waves, wave optics, lasers, and quantum mechanics;
2. discuss how the laws of physics have been exploited and applied in the development and design of simple engineering systems;
3. collate, analyse and formulate an experimental report with error analysis and conclusions;
Text Books:
1. Jenkins, F.A. and White, H.E., Fundamentals of Optics, McGraw Hill (2001).
2. Beiser, A., Concept of Modern Physics, Tata McGraw Hill (2007).
3. Griffiths, D.J., Introduction to Electrodynamics, Prentice Hall of India (1999).
Reference Books:
1. Pedrotti, Frank L., Pedrotti, Leno S., and Pedrotti, Leno M., Introduction to Optics, Pearson Prentice Hall^{TM} (2008).
2. Wehr, M.R, Richards, J.A., Adair, T.W., Physics of The Atom, Narosa Publishing House (1990) .
3. Verma, N.K., Physics for Engineers, Prentice Hall of India (2014)