1. Use the data that you have for the air-filled tube.
• Make a drawing of the standing wave in the tube when you have two, three, and four nodes or peaks. These will correspond to the first, second, and third overtones.
• For each standing wave, label the nodes and the antinodes.
• Label and record the distance in meters of the half wavelength (λ/2) for each standing wave.
• Explain how the standing wave occurs.

Question

1.	Use the data that you have for the air-filled tube. 
•	Make a drawing of the standing wave in the tube when you have two, three, and four nodes or peaks. These will correspond to the first, second, and third overtones.
•	For each standing wave, label the nodes and the antinodes. 
•	Label and record the distance in meters of the half wavelength (λ/2) for each standing wave. 
•	Explain how the standing wave occurs.

anonymous · Answer

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That's what an arbitrary standing wave looks like in a tube that's open at one end and closed at the other.
A node is where there's zero amplitude, an anti-node is where theres maximum amplitude.
At closed ends there are nodes. At open ends there are anti-nodes.
Half the wavelength is the distance between two adjacent nodes.