Check sibling questions
Class 9
Chapter 12 Class 9 - Sound (Deleted)

Why is sound wave called a longitudinal wave?

Answer 

In longitudinal waves, particles of wave move in direction of propagation of waves.

In a sound wave, the particles of the medium vibrate back and forth in the same direction of the disturbance.

Therefore, sound wave is called a longitudinal wave.

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo