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7) (a) Draw a diagram to represent the standing wave patterns for the first three harmonics...

7) (a) Draw a diagram to represent the standing wave patterns for the first three harmonics of a pipe with one open end.
(i) How many nodes and antinodes are there for each harmonic?
(ii) What are the relations for the length of the rope L, the wavelength λ, and the frequency f of the standing waves?

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