Waves and oscillations

A.Y. 2016/2017
7
Max ECTS
60
Overall hours
SSD
FIS/01
Language
Italian
Learning objectives
Il corso si propone di anticipare alcuni concetti fondamentali della fisica, che gli studenti riprenderanno in corsi successivi, affrontandoli attraverso semplice matematica e fenomenologia. I temi del moto oscillatorio e delle onde vengono presentati in modo trasversale, basandoli principalmente su fenomeni fisici di quotidiana esperienza. La correlazione tra fenomenologia e sua descrizione matematica è analizzata e discussa La dualità tra onde e particelle è introdotta attraverso la trattazione dell'ottica geometrica e dell'ottica fisica.
Expected learning outcomes
Undefined
Course syllabus and organization

CORSO A

Responsible
Lesson period
Second semester
Course syllabus
1 - Oscillations
- harmonic oscillator
- Damped oscillator
- Forced-damped oscillator

2 - Mechanical waves: vibrating string
- Free string; wave equation
- Bounded string; normal modes;
- Interference and standing waves
- Harmonic waves
- Power transferred by a wave
- Transmission and reflection of waves

3 - Mechanical waves: acoustics
- Pressure, density and temperature of a gas
- Equation of state and thermodynamic transformations for an ideal gas
- Acoustic waves in an ideal gas; equation of motion
- Speed of sound; isothermal and adiabatic models
- Standing waves in pipes; normal modes
- Power transferred by an acoustic wave
- Plane waves and spherical waves; wave function
- Phonometry; sound level; geometrical attenuation and absorption
- Doppler effect
- Interference and beatings

4 - Geometrical and Physical Optics
- Spectrum of the electromagnetic radiation; speed of light; wave-particle duality
- Spectrum of a black body
- Huygens-Fresnel principle; Fermat's principle
- Reflection and refraction;
- Fresnel coefficients
- Chromatic dispersion
- Paraxial approximation and imaging
- Plane and curved mirrors; dioptres; thin lenses; lens maker equation
- Optical instruments
- Fraunhofer diffraction; Rayleigh criterion
- Interference from a double slit; interference from a thin film; Michelson interferometer
- Diffraction grating
- Polarization of light
FIS/01 - EXPERIMENTAL PHYSICS - University credits: 7
Practicals: 20 hours
Lessons: 40 hours
Professor: Pagani Carlo

CORSO B

Responsible
Lesson period
Second semester
Course syllabus
1 - Oscillations
- harmonic oscillator
- Damped oscillator
- Forced-damped oscillator

2 - Mechanical waves: vibrating string
- Free string; wave equation
- Bounded string; normal modes;
- Interference and standing waves
- Harmonic waves
- Power transferred by a wave
- Transmission and reflection of waves

3 - Mechanical waves: acoustics
- Pressure, density and temperature of a gas
- Equation of state and thermodynamic transformations for an ideal gas
- Acoustic waves in an ideal gas; equation of motion
- Speed of sound; isothermal and adiabatic models
- Standing waves in pipes; normal modes
- Power transferred by an acoustic wave
- Plane waves and spherical waves; wave function
- Phonometry; sound level; geometrical attenuation and absorption
- Doppler effect
- Interference and beatings

4 - Geometrical and Physical Optics
- Spectrum of the electromagnetic radiation; speed of light; wave-particle duality
- Spectrum of a black body
- Huygens-Fresnel principle; Fermat's principle
- Reflection and refraction;
- Fresnel coefficients
- Chromatic dispersion
- Paraxial approximation and imaging
- Plane and curved mirrors; dioptres; thin lenses; lens maker equation
- Optical instruments
- Fraunhofer diffraction; Rayleigh criterion
- Interference from a double slit; interference from a thin film; Michelson interferometer
- Diffraction grating
- Polarization of light
FIS/01 - EXPERIMENTAL PHYSICS - University credits: 7
Practicals: 20 hours
Lessons: 40 hours
Professor: Vailati Alberto