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Sound — PHYSICS STD 7 — Question

ICSE BoardEnglish MediumSTD 7PHYSICSSound2 Marks
Question
Describe sound as a longitudinal wave.
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Answer

When a sound wave travels through a medium, a series of compressions and rarefactions is formed between the particles of the medium due to the vibration of these particles in a direction parallel to the direction in which the sound travels. This shows that sound waves are longitudinal in nature.

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