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Study of Sound — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceStudy of Sound1 Mark
MCQ
……………………………… are used in sonography.
  • ✓
    High frequency ultrasound
  • B
    Stationary waves
  • C
    High frequency infrasound
  • D
    High frequency micro waves
✓

Answer

Correct option: A.
High frequency ultrasound
High frequency ultrasound

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