This lecture covers the fundamentals of electromagnetic fields, including Coulomb's force, electric fields, Lorentz force, magnetic fields, and magnetic induction. It also delves into wave optics, discussing interference, diffraction, refraction, reflection, and optical instruments. The lecture further explores the mathematical description of waves, electromagnetic waves, diffraction, induction, and the concept of phase retardation. Additionally, it touches on the historical debate between the corpuscular and wave theories of light, the electromagnetic spectrum, and the principles of wave superposition. The lecture concludes with topics on wavefronts, spherical waves, and the Young's double-slit experiment.