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Question 31381
JEE Physics · Hard

Waves on String: Nonlinear Superposition MCQ

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Nonlinear SuperpositionHardQuestion 31381

Question

Three waves of same amplitude A and frequency, with phases 0, 2π/3, 4π/3 superimpose. Resultant amplitude:
  1. A
    3A
  2. B
    A√3
  3. C
    A
  4. D
    0
    Correct

Correct answer

0

Explanation

Phasors at 0°, 120°, 240° — equally spaced on circle, they cancel completely. Resultant = 0.

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