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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound2 Marks
Question
Give two uses of multiple reflection of sound.
✓

Answer

Multiple reflection of sound:
  1. In measuring the depth of sea/ ocean.
  2. For the detection of the positions of any objects such as shipwrecks, sea rocks, hidden ice berg in the sea and ocean.
  3. Investigating any problem inside the human body.

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