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NEST2016PhysicsWaves and Sound

Two speakers are driven by the same oscillator of frequency f . They are located a distance d from each other on a vertical pole. An observer far away walks slowly, straight towards the lower speaker and his ears are at the same level as the lower speaker. Let v represent the speed of sound and assume that there is no reflection from the ground. Let n_ max be the number of times the observer hears the minimum in soun

Options

  1. An_ d +0.5
  2. BA minimum occurs at 4 d^2+9 ^2 12 .
  3. Cn_ d -0.5
  4. DA minimum occurs at 4 d^2- ^2 4 .

Correct answer

D. A minimum occurs at 4 d^2- ^2 4 .

Step-by-step solution

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