which example would contain only longitudinal waves?\no a crowd doing the wave at a sporting event\no an…

which example would contain only longitudinal waves?\no a crowd doing the wave at a sporting event\no an ultrasound that transmits soundwaves\no the waves formed by the ocean\no playing the guitar strings

which example would contain only longitudinal waves?\no a crowd doing the wave at a sporting event\no an ultrasound that transmits soundwaves\no the waves formed by the ocean\no playing the guitar strings

Answer

Answer:

B. an ultrasound that transmits soundwaves

Explanation:

Step1: Recall wave - type definitions

Longitudinal waves have particle motion parallel to wave motion.

Step2: Analyze each option

  • A crowd doing the wave is a transverse - like human motion, not a true wave in physics sense related to longitudinal waves.
  • Ultrasound uses sound waves. Sound waves are longitudinal waves where particles vibrate parallel to the direction of wave propagation.
  • Ocean waves are surface waves which have a combination of transverse and longitudinal motion components.
  • Guitar strings produce transverse waves as the strings vibrate perpendicular to the direction of wave propagation.