Superposition of waves  - Waves

Superposition of waves 

Lessons

Notes:

In this lesson, we will learn:

  • Waves superposition
  • Waves interference
  • Standing waves

Notes:

Superposition (When two or more waves travelling though one another)

  • As waves pass through each there is no change in:
    Amplitude, direction, speed, frequency, wavelength
  • The displacement at the point where they meet is the sum of the displacements.
  • When pulses pass through one another superposition takes place.

Interference

  • When pulse meet at a point at the same time interference occurs.
  • Interference is the result of the superposition of two or more waves (the point where they meet).
  • Constructive interference: waves displacement are in the same direction, displacements add up, maximum displacement (ANTINODE)

Superposition of waves

  • Destructive interference: waves displacement are in the opposite direction, displacements cancel out, zero displacement (NODES)

Superposition of waves

Standing waves
  • When a string is plugged pulses travel back and forth, reflecting from the ends producing a complex of superposition called standing waves. Superimposed waves can produce standing waves.

Superposition of waves
  • Intro Lesson
    Superposition of waves
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Superposition of waves 

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