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Question:

EXACTLY WHERE AT THE MOUTH OF A PLASTIC TUBE DOES THE PRESSURE NODE FORM? (Dealing with standing waves in air)?

EXACTLY WHERE AT THE MOUTH OF A PLASTIC TUBE DOES THE PRESSURE NODE FORM? (Dealing with standing waves in air)?

Answer:

Level with the open end. Pressure nodes form where there are displacement antinodes and displacement nodes form where there are pressure antinodes If you look at the diagram, this will be clear.

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