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MHT CET202619 April 2026Evening ShiftPhysicsWaves and SoundActual

Two waves of same frequency ( n ) approaching each other with same velocity of 18 m/s interfere. The distance between two consecutive antinodes is

Options

  1. A18 n
  2. B10 n
  3. C9 n
  4. Dn 18

Correct answer

C. 9 n

Step-by-step solution

Velocity of the waves, v = 18 m/s. Frequency of the waves, f = n . Wavelength of the waves, = v f = 18 n . When two identical waves travelling in opposite directions interfere, they form a stationary wave. The distance between two consecutive antinodes in a stationary wave is 2 . Distance = 1 2 18 n = 9 n .

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