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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
For good absorption of sound in auditorium, it requires:
  • A
    A few windows to be opened
  • B
    All closed windows
  • C
    Maps hanging from walls
  • ✓
    Hanging curtains.
✓

Answer

Correct option: D.
Hanging curtains.

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