During the compression phase of the ultrasound crystal, which density is produced?

During the compression phase of the ultrasound crystal, which density is produced?

• A. High particle density
• B. Low particle density
• C. No density change
• D. Medium density

Answer: (A)

During compression, particles are squeezed closer together, increasing the density. In ultrasound, the wave alternates between compression (higher pressure, higher density) and rarefaction (lower pressure, lower density). So the density produced in the compression phase is higher than ambient. The other options describe the opposite (low density), no change, or an undefined mid-density, which don’t fit the phase-specific increase in density.

During compression, particles are squeezed closer together, increasing the density. In ultrasound, the wave alternates between compression (higher pressure, higher density) and rarefaction (lower pressure, lower density). So the density produced in the compression phase is higher than ambient. The other options describe the opposite (low density), no change, or an undefined mid-density, which don’t fit the phase-specific increase in density.