: Estudio de la naturaleza de la luz, óptica geométrica (lentes y espejos) y óptica física.
Physics in 2nd year becomes highly visual. You need to visualize magnetic field lines, electric potentials, and wave interference. Santillana uses color-coded diagrams and of experiments (like Oersted’s needle or the photoelectric cell). A "better" PDF preserves these colors and details. : Estudio de la naturaleza de la luz,
A primary strength is its alignment with national exams. Almost all questions and exercises are sourced from actual past University Entrance Exams : Estudio de la naturaleza de la luz,