which example would contain only longitudinal waves? a crowd doing the wave at a sporting event an…

which example would contain only longitudinal waves? a crowd doing the wave at a sporting event an ultrasound that transmits soundwaves the waves formed by the ocean playing the guitar strings
Answer
Brief Explanations:
- A crowd doing the wave is a transverse - like motion.
- Ultrasound uses sound waves which are longitudinal waves. Sound waves are longitudinal as the particles of the medium vibrate parallel to the direction of wave propagation.
- Ocean waves are surface waves which have both longitudinal and transverse components.
- Guitar strings produce transverse waves as the strings vibrate perpendicular to the direction of wave propagation.
Answer:
B. an ultrasound that transmits soundwaves