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Sound — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceSound1 Mark
MCQ
The sound above $...........$ is physically painful.
  • A
    $20dB$
  • B
    $40dB$
  • C
    $60dB$
  • ✓
    $80dB$
✓

Answer

Correct option: D.
$80dB$

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