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MHT CET202415 May 2024Evening ShiftPhysicsWaves and SoundActual

Velocity of sound waves in air is 330 ~m / s . For a particular sound wave in air, path difference of 40 cm is equivalent to phase difference of 1.6 : frequency of this wave is

Options

  1. A165 Hz
  2. B150 Hz
  3. C660 Hz
  4. D330 Hz

Correct answer

C. 660 Hz

Step-by-step solution

Given: =1.6 and = V f = 330 f ...(i) We know, Phase difference = 2 x where x is path difference. 1.6 = 2 (40 10⁻² ) f 330 ...[From(i)] f =660 ~Hz

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