__PH3151 __

__ENGINEERING PHYSICS __

**COURSE OBJECTIVES**

• To make the students effectively to
achieve an understanding of mechanics.

• To enable the students to gain knowledge
of electromagnetic waves and its applications.

• To introduce the basics of oscillations,
optics and lasers.

• Equipping the students to be successfully
understand the importance of quantum physics.

• To motivate the students towards the
applications of quantum mechanics.

**UNIT - I **

**MECHANICS**

Multi-particle
dynamics: Center of mass (CM) – CM of continuous bodies – motion of the CM – kinetic
energy of system of particles. Rotation of rigid bodies: Rotational kinematics
– rotational kinetic energy and moment of inertia - theorems of M .I –moment of
inertia of continuous bodies – M.I of a diatomic molecule - torque – rotational
dynamics of rigid bodies – conservation of angular momentum – rotational energy
state of a rigid diatomic molecule - gyroscope - torsional pendulum – double
pendulum –Introduction to nonlinear oscillations.

**UNIT - II **

**ELECTROMAGNETIC WAVES**

The
Maxwell’s equations - wave equation; Plane electromagnetic waves in vacuum,
Conditions on the wave field - properties of electromagnetic waves: speed,
amplitude, phase, orientation and waves in matter - polarization - Producing
electromagnetic waves - Energy and momentum in EM waves: Intensity, waves from
localized sources, momentum and radiation pressure - Cell-phone reception.
Reflection and transmission of electromagnetic waves from a non-conducting
mediumvacuum interface for normal incidence.

** **

**UNIT - III **

**OSCILLATIONS, OPTICS AND LASERS**

Simple
harmonic motion - resonance –analogy between electrical and mechanical
oscillating systems - waves on a string - standing waves - traveling waves -
Energy transfer of a wave – sound waves - Doppler effect. Reflection and
refraction of light waves - total internal reflection – interference –Michelson
interferometer –Theory of air wedge and experiment. Theory of laser -
characteristics - Spontaneous and stimulated emission - Einstein’s coefficients
- population inversion - Nd-YAG laser, CO_{2} laser, semiconductor
laser –Basic applications of lasers in industry.

**UNIT - IV **

**BASIC QUANTUM MECHANICS**

Photons
and light waves - Electrons and matter waves –Compton effect - The Schrodinger
equation (Time dependent and time independent forms) - meaning of wave function
- Normalization –Free particle - particle in a infinite potential well: 1D,2D
and 3D Boxes- Normalization, probabilities and the correspondence principle.

**UNIT - V **

**APPLIED QUANTUM MECHANICS**

The
harmonic oscillator(qualitative)- Barrier penetration and quantum
tunneling(qualitative) - Tunneling microscope - Resonant diode - Finite
potential wells (qualitative)- Bloch’s theorem for particles in a periodic
potential –Basics of Kronig-Penney model and origin of energy bands.

**TOTAL
: 45 PERIODS**

** **

**COURSE OUTCOMES**

After
completion of this course, the students should be able to

• Understand the importance of mechanics.

• Express their knowledge in electromagnetic
waves.

• Demonstrate a strong foundational
knowledge in oscillations, optics and lasers.

• Understand the importance of quantum physics.

• Comprehend and apply quantum mechanical
principles towards the formation of energy bands.

**TEXT BOOKS:**

1.
D.Kleppner and R.Kolenkow. An Introduction to Mechanics. McGraw Hill Education
(Indian Edition), 2017.

2.
E.M.Purcell and D.J.Morin, Electricity and Magnetism, Cambridge Univ.Press,
2013.

3.
Arthur Beiser, Shobhit Mahajan, S. Rai Choudhury, Concepts of Modern Physics,
McGraw-Hill (Indian Edition), 2017.

**REFERENCES:**

1.
R.Wolfson. Essential University Physics. Volume 1 & 2. Pearson Education
(Indian Edition), 2009.

2.
Paul A. Tipler, Physic – Volume 1 & 2, CBS, (Indian Edition), 2004.

3.
K.Thyagarajan and A.Ghatak. Lasers: Fundamentals and Applications, Laxmi
Publications, (Indian Edition), 2019.

4.
D.Halliday, R.Resnick and J.Walker. Principles of Physics, Wiley (Indian
Edition), 2015.

5.
N.Garcia, A.Damask and S.Schwarz. Physics for Computer Science Students.
Springer- Verlag, 2012.