In physics, "longitudinal" refers to waves that oscillate in the same direction as their motion.

लंबाई में तरंगें

English Usage: Longitudinal waves, such as sound waves, travel through air by compressing and rarefying the medium.

Hindi Usage: लंबाई में तरंगें, जैसे कि ध्वनि तरंगें, वायु में संकुचन और विराम के माध्यम से यात्रा करती हैं।