# Behaviour of waves

- Created by: darkest_soul
- Created on: 15-05-19 10:55

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- Behavior of waves
- Superposition
- When more than one wave is in the same location, the overall effect is the vector sum of their individual displacements at each point where they meet.
- Constructive interference
- If two waves are in phase, they will produce a larger-amplitude resultant wave

- Destructive interference
- If waves meet and are exactly out of phase then the resultant is a zero-amplitude wave

- Constructive interference

- When more than one wave is in the same location, the overall effect is the vector sum of their individual displacements at each point where they meet.
- Phase angles
- 1/4 of a cycle
- 90°
- pi/2
- lambda/4

- pi/2

- 90°
- 1/2 of a cycle
- 180°
- pi
- lambda/2

- pi

- 180°
- 3/4 of a cycle
- 270°
- 3(pi)/2
- 3(lambda)/4

- 3(pi)/2

- 270°
- A whole cycle
- 360°
- 2pi
- lambda

- 2pi

- 360°

- 1/4 of a cycle

- Superposition

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