- COURSE OBJECTIVES:
- To make the students effectively 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 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 the 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 9
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, CO2 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 BoxesNormalization, 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.
Engineering Physic important questions
Unit-1
1.Relation between moment of inertia and kinetic energy
2.Moment of inertia of a diatomic molecule
3.Rotational energy states of a diatomic molecule
4.Gyroscope
5.Parallel and perpendicular axis theorem
6.Law of conservation of angular momentum
7.Torsional pendulum
8.Expression of angular momentum
Unit-2
1.Maxwell equations
2.Wave equations,speed, amplitude and phase and conditions on the wave field
Unit-3
1.Einstein A and B coefficients
2.Nd-Yag laser
3.CO2 Laser
4.Semiconductor laser(Homo and Hetero junction)
Unit-4
1.Schrodinger time independent and time dependent equation
2.Particle in one dimensional box
3.Extension into 2 D and 3 D
Unit-5
1.STM
2.RTD
3 . kronig Penney model
4.Origin of energy bands