An open pipe of length $33\, cm$ resonates to a frequency of $1000\,Hz$. The mode of   vibration is: (velocity of sound $= 330\, m/s$)
  • A
    Fundamental
  • BThe $2^{nd}$ harmonic
  • CThe $3^{rd}$ harmonic
  • DThe $4^{th}$ harmonic
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