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Propagation of Sound Waves — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSPropagation of Sound Waves1 Mark
MCQ
Sonar makes use of :
  • A
    infrasonic sound
  • ✓
    ultrasound
  • C
    ordinary sound
  • D
    light
✓

Answer

Correct option: B.
ultrasound

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