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NEET2025PhysicsWaves and SoundActual

A pipe open at both ends has a fundamental frequency f in air. The pipe is now dipped vertically in a water drum to half of its length. The fundamental frequency of the air column is now equal to :

Options

  1. Af 2
  2. Bf
  3. C3 f 2
  4. D2 f

Correct answer

B. f

Step-by-step solution

For open pipe f = V 2 When half of its length is dipped in water, Now it is COP. aligned & f ^ = V 4( / 2) & f ^ = V 2 & f ^ = f aligned

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