Class 12 Physics Wave Optics Superposition of waves

Superposition of waves

  • Superposition of waves is defined as the resultant displacement produced by a number of waves is the vector sum of displacements produced by each of them.
  • Two 2 different waves add up to form a single wave and whose displacement will be given by vector sum of individual waves.
  • There are 2 types of superposition:-
    • Constructive overlap:-When two waves overlap to produce a bigger wave that is known as constructive overlap.
      • Either two crests or two troughs overlap to form a bigger wave.
      • For constructive overlap both the waves are in phase with each other.

Destructive overlap:-There will no resultant wave when 2 out of phase waves overlap together.

 

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