Electric charge. Coulomb’s law. Electrostatic field. Gauss’s law. Electrostatic potential. Equations of Poisson and Laplace. Electrostatic energy. Conductors. Dielectrics. Polarization. Capacitance, capacitors. Moving charges, electric current, Ohm’s law. Magnetic field. Matter in electric and magnetic fields. Lorentz force. Laws of Ampere and Biot-Savart. Induction, Faraday’s law. Displacement current. Maxwell’s equations. Electromagnetic waves: propagation, polarization, interference, diffraction. Geometrical optics. Basic laws of optics: reflection, refraction. Lens, prism. Dispersion, optical spectrum. Optical instruments. Spectroscopes, spectrographs.