PHYSICS 3


course ID

Lecturer

CFU

6

Length

14 Weeks

Semester DD

Second


Course details

Wave phenomena - D'Alembert equation - Plane waves - Elastic waves in a solid bar, elastic waves in a stretched string, waves in gases - Harmonic plane waves and Fourier Analysis - Polarization - Energy Propagation, wave intensity - Beats - Waves in three dimensions - Wave packets, phase and group velocities - Doppler Effect and shock wave - Electromagnetic waves - Electromagnetic plane waves - Polarization - Energy - Poynting vector and Poynting theorem - Radiation pressure - Oscillating dipole and Larmor Formula - Radiation emitted by atoms, light diffusion - Propagation of e.m. wave in a dielectric medium - Relativistic Doppler effect and Cerenkov effect - Reflection and refraction of waves - Huygens principle and Kirchhoff theorem - Laws of reflection and refraction - Snell's Law, Brewster angle and total reflection -Fresnel formulas - Interference phenomena - Interference produced by two sources - Young's Experiment - Optical path - Lloyd mirror - Interference of N coherent sources - Interference on thin layer, Newton's rings - Standing waves in a stretched string with fixed ends - Tightrope with a free end - Diffraction - Diffraction of Fraunhofer and Fresnel - Diffraction at a slit - Diffraction by hole and disc - Resolving limit of lens and the human eye separation power - Diffraction grating - Resolving power and a dispersive grating - Fresnel Diffraction, case of a circular hale - Geometrical Optics - Definitions and conventions - Mirrors - Diopters - Thin lenses - Thick lenses and Centred optical systems - Optical aberrations - Fermat principle.

Objectives

LEARNING OUTCOMES:
The course aims to provide the fundamental notions of wave phenomena, physical optics and geometric optics, in the field of classical physics.
The course consists of lectures on theory and exercises.

KNOWLEDGE AND UNDERSTANDING:
Students must acquire knowledge of the part of classical physics concerning waves and optics.

APPLYING KNOWLEDGE AND UNDERSTANDING:
The student must be able to solve simple problems in an autonomous way and to expose and demonstrate the different topics covered during the lessons.
Students must be able to apply their knowledge and understanding in order to analyze and conceptualize the proposed physical problems. They must also have adequate skills to devise and support arguments on the proposed topics.
Finally they must be able to identify the essential elements of a simple physical problem and know how to model them, making the necessary approximations.

MAKING JUDGEMENTS:
Students must be able to critically analyze the topics covered and possibly make autonomous bibliographic research to deepen the proposed themes.

COMMUNICATION SKILLS:
They must be able to present the topics covered with depth and language properties, analyzing their various aspects and connections.

LEARNING SKILLS:
To stimulate and direct students to the consultation of several manuals, in order to learn the same topic from more than one source, thus deepening their understanding and at the same time extending their analytical skills.