60/60/141 - GENERAL PHYSICS II LAB
Academic Year 2022/2023
Free text for the University
FRANCESCO QUOCHI (Tit.)
Ciclo Annuale Unico
- Teaching style
- Lingua Insegnamento
|[60/60] PHYSICS||[60/00 - Ord. 2012] PERCORSO COMUNE||12||144|
KNOWLEDGE AND UNDERSTANDING
The Student will gain (i) practical competencies in the fields of electromagnetism (electrical circuits, propagation of electromagnetic waves and optics), as well as (i) competencies in experimental techniques for electrical and optical measurements by means of analog and digital instrumentation.
ABILITY TO APPLY KNOWLEDGE AND UNDERSTANDING
The Student will gain the knowledge and abilities required to safely use laboratory equipment, to acquire experimental data, to elaborate acquired data by means of data analysis software and programming languages. Such abilities will allow the Student to deeply understand and use optical systems and electrical circuits.
INDEPENDENCE OF JUDGEMENT
The Student will be stimulated to work in safety with spirit of independence and critical sense by applying the scientific method rigorously, quantifying statistical experimental errors and evaluating the consistency of the results obtained. Furthermore, the Student will develop the ability to trace observations back to theoretical laws of electrical circuits, electromagnetic wave propagation and optics.
The Student will develop (i) the ability to work in a team in laboratory experiments, as well as (ii) communication skills with relation to elaboration and presentation of acquired data with great attention to the English terminology.
The Student will be stimulated to use the knowledge and abilities acquired by the laboratory activities to further deepen knowledge of electromagnetism and optics for application to electrical circuits and modern optical instruments, respectively.
Knowledge of the contents of the courses of Physics I, Analysis I and Laboratory of Physics I.
MODULE 1: GEOMETRIC AND PHYSICAL OPTICS, ELECTRICAL CIRCUITS AND MEASURING INSTRUMENTS
-Specular reflection law and Snell’s law
-Mirrors: conjugate points equation, transversal and longitudinal magnification
-Diopters and thin lenses: conjugate points equation, transversal and longitudinal magnification
-Optical systems: human eye, eyepiece, microscope, Galilean telescope, Hubble Space telescope
-Prisms: minimum deflection angle and angular dispersion
-Direct-current (DC) circuits: Kirchhoff’s laws, examples of DC circuits
-Transient phenomena and electromagnetic oscillations: RC, RL, LC and RLC circuits
-Alternating-current (AC) circuits: phasor method, impedance, generalized Kirchhoff’s laws, active, reactive and apparent power, transfer function of linear circuits, passive filters
-Transmission lines: Characteristic impedance, line termination, coefficients for voltage reflection and transmission at line discontinuities, input impedance of a transmission line
-Further elements of AC circuits: Ideal transformer, bridge circuits and compensated oscilloscope probe
-Huygens-Fresnel principle, diffraction and interference of coherent light
-Resolving power of optical instruments: prism spectrometer and grating spectrometer
-P-n junction diode basics and examples of circuits with p-n diodes
-Measuring instruments: Multimeter, c.v./c.c. power source, function generator, digital oscilloscope
MODULE 2: LABORATORY EXPERIMENTS OF ELECTROMAGNETISM AND OPTICS
1) SERIES RLC CIRCUIT: (i) Determination of the resonance frequency and free-oscillation attenuation constant; (ii) Measurement of the voltage transfer function of the circuit in band-pass filter configuration.
2) BRIDGE CIRCUITS: (I) Measurements of resistance by means of a Wheatstone bridge circuit; (ii) Measurements of capacitance by means of a De Sauty bridge circuit.
3) CENTERED OPTICAL SYSTEM: (i) Experimental validation of thin-lens conjugate points equation and transversal magnification formula; (ii) experimental validation of composition laws for thin-lens systems.
4) JUNCTION DIODE AND RECTIFYING CIRCUITS: (i) Measurement of the characteristic i-V curve of a p-n junction diode; (ii) Realization and characterization of half-wave and full-wave rectifying circuits with capacitive filter at the line frequency.
5) ELECTRICAL TRANSMISSION LINE: (i) Determination of the speed of electromagnetic signals and of the attenuation coefficient of a transmission line based on a coaxial cable; (ii) Measurement of the voltage reflection coefficient of a coax cable terminated on a resistive load; (iii) Determination of the voltage reflection and transmission coefficients of a coax cable junction with shunt resistor.
6) LIGHT DIFFRACTION AND INTERFERENCE: (i) Utilization of a data-acquisition software application and its practical use for acquisition of light diffraction and interference patterns; (ii) Measurement of the diffraction pattern of monochromatic light from linear single slits; (iii) Measurement of diffraction/interference pattern of monochromatic light from linear double slits.
Teaching will be delivered mainly face to face, integrated and "augmented" with online strategies, in order to guarantee its use in an innovative and inclusive way
METHODS AND TECHNIQUES FOR DIDACTIC INTERACTION IN PRESENCE OF THE TEACHER AND TUTOR
a) Teaching classes supported by slide presentations and online available material for simulation of physical phenomena and electric circuits, aimed at maximizing Teacher-to-Student knowledge transfer (about 40 hours).
b) Active presence of Teacher and Tutor during laboratory sessions to allow the Student to fix knowledge acquired during teaching classes and fully develop the required experimental skills (about 100 hours).
METHODS AND TECHNIQUES FOR REMOTE DIDACTIC INTERACTION
c) Summary of contents of teaching classes and supporting material made readily available at the Teacher’s homepage and at the E-Learning course webpage.
d) E-Learning quizzes of multiple-answer and/or open-answer questions assigned to the Student for homework, aimed at strengthening knowledge gained during teaching classes and developing skills necessary to solve problems of electromagnetism applied to electric circuits and optical instruments.
e) Direct contact of the Student with Teacher and Tutor via email and E-Learning/Windows Teams platforms.
Verification of learning
Students are supposed to complete all quizzes of questions assigned for homework and to write reports for all laboratory experiments done in team working. Student’s evaluation is concluded with an oral exam of experimental nature.
a) The quizzes of question assigned for homework are aimed at verifying Student’s acquisition of knowledge about practical electromagnetism and optics, and at assessing his/her ability to solve problems relating to electrical circuits and optical systems.
b) The reports of laboratory experiments are used to assess Student’s ability to do computer-based data acquisition and analysis, and to communicate the results in written form. Student’s ability to measure electrical and optical quantities will also be evaluated indirectly.
c) The oral exam of experimental nature is aimed at directly assessing (i) Student’s ability to measure electrical quantities, as well as (ii) Student’s basic knowledge of the measured quantities. Due to the didactic requirements connected to the pandemic, the oral exam could possibly be done remotely. In this case, it will be aimed at assessing Student’s ability to simulate and measure the optical/electromagnetic phenomena of interest.
The oral exam and a make-up written test, consisting of series of questions similar to those of quizzes administered during the course, can be taken only once during the summer exam session and possibly repeated at the exam session after the summer break. The scores obtained in the oral exam and in the make-up written test will be kept till September 30th of the current Academic Year. In the January/February session, both the oral exam and the written test shall be taken again.
-Late deliveries of laboratory reports are not allowed.
-For repeated exams, last scores are the ones that count.
CALCULUS OF THE FINAL MARK:
(i) The quizzes of questions are worth up to 5 points;
(ii) The best five laboratory reports are worth up to 20 points;
(iii) The oral exam of experimental nature is worth up to 6 points;
(iv) Summa cum laude is granted for a total score of 31 points.
-P. Mazzoldi, M. Nigro, C. Voci, Fisica, Vol. II, Elettromagnetismo-Onde (EdiSES)
-Explanatory notes of laboratory experiments
-Specific tutorials supplied by the teachers
-PHET Interactive Simulations: Simulation of physical phenomena
-The Physics Classrooms. Physics Interactives: Image construction by mirrors and lenses (http://www.physicsclassroom.com/Physics-Interactives/)
-Circuit Simulator Applet: Computer simulation of electric circuits (http://www.falstad.com/circuit/)
-Wikipedia: Online Encyclopedia (https://it.wikipedia.org/)
We remind all students that our University provides support for students with specific learning disabilities (SLD). Those interested can find more information at this link: http://corsi.unica.it/fisica/info-dsa/