Ultrasound waves propagate parallel to which direction?

Ultrasound waves propagate parallel to which direction?

• A. Perpendicular
• B. Parallel
• C. Circular
• D. Radial

Answer: (B)

Ultrasound waves in tissue are longitudinal, meaning the particles in the medium oscillate back and forth along the same line that the wave travels. So the direction of wave propagation is parallel to the direction of the particle motion. This is why ultrasound beams move along their axis, with the vibration aligned with the travel direction. Perpendicular would describe transverse waves, while circular or radial aren’t used to describe standard propagation direction in this context. Therefore, the wave travels parallel to the direction of propagation.

Ultrasound waves in tissue are longitudinal, meaning the particles in the medium oscillate back and forth along the same line that the wave travels. So the direction of wave propagation is parallel to the direction of the particle motion. This is why ultrasound beams move along their axis, with the vibration aligned with the travel direction. Perpendicular would describe transverse waves, while circular or radial aren’t used to describe standard propagation direction in this context. Therefore, the wave travels parallel to the direction of propagation.