This biophysics course introduces fundamental physical principles essential for understanding biological systems and veterinary medical technologies. It covers the behavior of light, including image formation through lenses and mirrors, which is important for instruments like microscopes and ophthalmoscopes. The course also presents the nature of electromagnetic radiation, its interaction with matter, and its biological effects, including applications such as X-rays and diagnostic imaging in animals. Students learn the principles of fluid mechanics, including pressure, flow, viscosity, and circulation, which are applied to understand blood flow, respiration, and other fluid-related processes in animals. Finally, the course explores sound waves, their propagation, and properties, as well as ultrasound principles used in veterinary diagnostics, such as organ examination and pregnancy monitoring.