Behaviour of waves

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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
    • Phase angles
      • 1/4 of a cycle
        • 90°
          • pi/2
            • lambda/4
      • 1/2 of a cycle
        • 180°
          • pi
            • lambda/2
      • 3/4 of a cycle
        • 270°
          • 3(pi)/2
            • 3(lambda)/4
      • A whole cycle
        • 360°
          • 2pi
            • lambda

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