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Sound. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceSound.1 Mark
MCQ
Noise is produced by
  • A
    vibrations with high frequency.
  • B
    regular vibrations.
  • C
    regular and periodic vibrations.
  • D
    irregular and non-periodic vibrations.
✓

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