0How is sound produced?
Sound is produced by rapid vibration (rapid to and fro motion) of objects.
E.g.: Guitar, Bell, Vocal cord, etc.
Propagation of sound:
Sound travels through a medium (object through which sound is transmitted) that can be solid, liquid or gas.
- Sound is propagated by the disturbance created by the source through the particles of the medium in which the particles vibrate (about their mean position) but do not move forward.
- This disturbance is carried forward by the particles of the medium creating a wave called
- Compression and Rarefaction:-
- Compression is the region of high pressure or the density of particles is high.
- Rarefaction is the region of low pressure or the density of particles is low.
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Longitudinal Wave (Sound):- When the medium travels parallel to the direction of propagation of wave then it is called as longitudinal wave. For e.g. – Sound wave.
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Transverse wave: - When particles of the medium oscillates perpendicular to the direction of propagation of wave. E.g. - Light wave.
