Which of the following best defines longitudinal wave?
AIn a longitudinal wave, particle displacement is parallel to the direction of wave motion.
BIn a longitudinal wave, particle displacement is above the direction of wave motion.
CIn a longitudinal wave, particle displacement is opposite to the direction of wave motion.
DIn a longitudinal wave, particle displacement is perpendicular to the direction of wave motion.
AIn a longitudinal wave, particle displacement is parallel to the direction of wave motion.
BIn a longitudinal wave, particle displacement is above the direction of wave motion.
CIn a longitudinal wave, particle displacement is opposite to the direction of wave motion.
DIn a longitudinal wave, particle displacement is perpendicular to the direction of wave motion.