This page provides an overview of wave phenomena with a focus on acoustic waves, comparing them to electromagnetic waves in theory and application. It discusses the mathematical formulation of acousti...This page provides an overview of wave phenomena with a focus on acoustic waves, comparing them to electromagnetic waves in theory and application. It discusses the mathematical formulation of acoustic wave equations, phase and group velocities, and their propagation characteristics. Key concepts such as acoustic impedance, intensity, and energy balance in resonators are explored, alongside practical examples.