Sound is a mechanical wave that propagates through a medium, transferring energy without transferring matter. In biophysics, understanding the properties of sound—frequency, velocity, and intensity—is crucial for applications in diagnostics (e.g., ultrasound), hearing mechanisms, and therapeutic interventions. 1. Frequency of Sound Definition: Range: Relevance in Biophysics: 2. Velocity of Sound Definition: Typical Values: Relevance in Biophysics: 3. Intensity of Sound Definition: Thresholds: Relevance in Biophysics: Applications of Sound Properties in