Anglais 3 L2 PHYSIQUE 2025.2026 SEM 3

Course Description

This course trains students to use English for scientific study and communication. Two main goals are pursued:

  1. Acquire a scientific language culture and the basics of general English for everyday academic use.

  2. Develop practical techniques for preparing and delivering oral presentations (exposés) and producing concise written summaries.

The course links language instruction with scientific content whenever possible: students will work with physics-related texts, technical notices, publications, and project reports. Instruction uses varied media (written texts, audio, slides, video) and emphasizes active practice.


Geometrical Optics (2025-2026)

 Geometrical Optics

This module introduces the fundamental principles of optics through the ray model. We analyze light propagation in transparent media, image formation across interfaces, and the design of complex optical instruments.

01
Fundamental Laws

Rectilinear propagation, Snell-Descartes laws, and Fermat’s principle of least time.

\( n_1 \sin(i_1) = n_2 \sin(i_2) \)
Huygens Construction Refractive Index
02
Mirrors

Image construction and position formulas for plane and spherical reflective surfaces.

\( \frac{1}{v} + \frac{1}{u} = \frac{1}{f} \)
[Image of concave and convex mirror ray diagrams]
Catoptrics Virtual Images
03
Diopters

Refraction at plane and spherical interfaces. Mastery of conjugation and magnification.

\( \frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R} \)
Stigmatism Gauss Conditions
04
Prisms

Study of light deviation and chromatic dispersion formulas through triangular media.

\( \delta = i + i' - A \)
[Image of light dispersion through a prism]
Spectroscopy Minimum Deviation
05
Thin Lenses

Position formulas and geometric ray construction for centered optical systems.

\( \frac{1}{f'} = (n-1)(\frac{1}{R_1} - \frac{1}{R_2}) \)
Convergence Image Nature
06
Optical Instruments

Application to the human eye, magnifying glasses, microscopes, and telescopes.

\( G = \frac{\alpha'}{\alpha} \)
Accommodation Angular Magnification
Phys 302: Geometrical Optics Module Moodle Course Pack v2025