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Propagation of Sound Waves — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSPropagation of Sound Waves2 Marks
Question
State two applications of ultrasound.
✓

Answer

Two applications of ultrasound:
(i) Ultrasound is used for drilling holes or making cuts of desired shape in materials like glass.
(ii) Ultrasound is used in surgery to remove cataract and in kidneys to break the small stones into fine grains.

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