(chatquestion)...A source of sound placed at the open end of a resonance column sends an acoustic wave of pressure amplitude Po inside the tube. If the atmospheric pressure is P4, then the ratio of maximum and minimum pressure at the closed end of the tube will be (P4+2P,) (PA–2P,) (P4+ P,) (b) (а) (PĄ – P.) А 1 PA +-P PA (d) (c) 1 ·Po PA 2 PA...(Photo from Aayush)

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