Sagot :
Réponse :
hello
mais comme jaime trop langlais tu dois mapprendre tous sil te plait ( but as i love too much you have to teach me all please
Explications :
The analysis of several optical instruments is based on the laws of reflection and, more particularly, of refraction.
We apply geometrical optics which treats light electromagnetic waves like rays and which ignore their wave character. This geometric treatment is correct as long as the surfaces and discontinuous encounters by the wave (mirrors, lenses, etc.) during its propagation are very large compared to the wavelength.
We will begin to study the lenses, then the graphical mirrors. We will finish by the study of some frequently used optical devices like the microscope, the telescope etc ...
