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Propagation of Sound Waves — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSPropagation of Sound Waves2 Marks
Question
Define the term wave velocity. Write its S.I. unit.
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Answer

The distance travelled by a wave in one second is called its wave velocity.
Its SI unit is metre per second $(ms^{-1}).$

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