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STANDING WAVES - PowerPoint PPT Presentation


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STANDING WAVES. Nodes. Antinodes. The distance between adjacent antinodes is λ /2. The distance between adjacent nodes is λ /2. The distance between a node and an adjacent antinode is λ /4. FIXED ENDS. fundamental/1 st harmonic. 2nd harmonic. Normal modes. 3rd harmonic.

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Presentation Transcript
slide6

The distance between adjacent antinodes is λ/2.

The distance between adjacent nodes is λ/2.

The distance between a node and

an adjacent antinode is λ/4.

fixed ends
FIXED ENDS

fundamental/1st harmonic

2nd harmonic

Normal

modes

3rd harmonic

4th harmonic

slide10

Fixed at both ends

Open at both ends

Fixed at one end – open at the other

resonance
RESONANCE

An oscillating system is in resonance with some

driving force whenever the frequency of the driving

force matches one of the natural frequencies

of the system; the system responds with a large A.

phase velocity group velocity and dispersion

Phase velocity, Group velocity and Dispersion

How might a pulse change shape

if the phase velocity is not constant,

but depends on frequency?