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Mr. Dubey • 52.30K Points
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Q. There is no Doppler effect for sound when

  • (A) the source produces a sound of very high frequency
  • (B) the source of sound recedes from the observer
  • (C) the source of sound approaches the observer
  • (D) the source of sound moves at right angle to the line joining the source and the observer
Correct Answer - Option(D)

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