|
Wave interference and boundary conditions
|
|
| |
Principle of superposition |
|
| |
Standing waves on a string |
 |
 Nodes at:  |
Constructive interference at antinodes
|
Destructive interference at nodes
|
|
|
| |
Normal modes of a string |
Normal mode: a motion in which all particles move with the same frequency
|
 |
|
Harmonic series:  |
Fundamental frequency:  |
 : second harmonic (first overtone)
|
 : third harmonic (second overtone)
|
|
