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Olympiad workbookNSEPWaves and Sound

A sound source of constant frequency travels with a constant velocity past an observer. When it crosses the observer the sound frequency sensed by the observer changes from 449 Hz to 422 Hz . If the velocity of sound is 340 ~m / s , the velocity of the source of sound is

Options

  1. A8.5 ~m / s
  2. B10.5 ~m / s
  3. C12.5 ~m / s
  4. D14.5 ~m / s

Correct answer

B. 10.5 ~m / s

Step-by-step solution

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