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Unit - 7.1 Characteristics Of Sound — PHYSICS STD 8 — Question

ICSE BoardEnglish MediumSTD 8PHYSICSUnit - 7.1 Characteristics Of Sound1 Mark
Question
Write the correct statement :
In order to produce an echo, the minimum distance between the source of sound and the reflecting body should be 14 m.
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Answer

In order to produce an echo, the minimum distance between the source of sound and the reflecting body should be 17 m.

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