Question

sound is produced by waves but give three reasons

Answer 1

Answer:

yes sound is produced by waves made during vibration of a body then for what we have to give reason

Answer 2

Answer:

Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.This causes the air molecules to the right of the string to be compressed into a small region of space.

Explanation:

1. The vibrations of the object set particles in the surrounding medium in vibrational motion, thus transporting energy through the medium.
2. A vibrating string can create longitudinal waves as depicted in the animation below. As the vibrating string moves in the forward direction, it begins to push upon surrounding air molecules, moving them to the right towards their nearest neighbor. This causes the air molecules to the right of the string to be compressed into a small region of space.
3. As the vibrating string moves in the reverse direction (leftward), it lowers the pressure of the air immediately to its right, thus causing air molecules to move back leftward. The lower pressure to the right of the string causes air molecules in that region immediately to the right of the string to expand into a large region of space. The back and forth vibration of the string causes individual air molecules (or a layer of air molecules) in the region immediately to the right of the string to continually vibrate back and forth horizontally.

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