Minimum in sound intensity, Physics

Two speakers are driven by the same oscillator whose frequency is f. They are located a distance d from each other on a vertical pole. A man walks straight toward the lower speaker in a direction perpendicular to the pole, as shown in figure.

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(a)    How many times will he hear a minimum in sound intensity?

(b) How far is he from the pole at these moments? Let v represent the speed of sound, and assume that the ground does not reflect sound.

 

Posted Date: 3/13/2013 2:04:39 AM | Location : United States







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