👉 Disturbance is a term used in the field of physics and engineering, specifically related to the study of waves. It refers to any disturbance that occurs in a medium such as air, water, or soil caused by an oscillation or motion of particles within that medium. Disturbances can be categorized into two main types: transient and steady-state disturbances. Transient disturbances occur at times when the system is still (e.g., a sudden change in temperature) or stationary (e.g., a
