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PHYSICS CH8 Sound — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9SciencePHYSICS CH8 Sound1 Mark
MCQ
SI unit of wavelength is ……………………………..
  • A
    Hertz
  • B
    metre per second
  • C
    decibel
  • ✓
    metre
✓

Answer

Correct option: D.
metre
metre

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