Quest Waves key - Version 001 Test#6 Waves tubman(12125 This print-out should have 25 questions Multiple-choice questions may continue on the next

# Quest Waves key - Version 001 Test#6 Waves tubman(12125...

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Version 001 – Test #6 Waves – tubman – (12125) 1 This print-out should have 25 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Concept 20 P07001 (part 1 of 3) 10.0 pointsTwo speakers are wired to emit identicalsounds in unison.The wavelength in air ofthe sounds is 6 m.Do the sounds interfere constructively ordestructively at a distance of 12 m from bothspeakers? 1.Constructivelycorrect2.Neither3.DestructivelyExplanation:They travel the same distance and aretherefore in phaseand interfereconstruc-tively.002 (part 2 of 3) 10.0 pointsAt a distance of 9 m from both speakers? 1.Destructively2.Constructivelycorrect At a distance of 9 m from one speaker and 12m from the other? The crest of one coincides with the trough of the other. Conceptual 15 Q13004 (part 1 of 2) 10.0 pointsA pure tone with frequency 500 Hz is playedthrough two stereo speaker plugged into thesame jack.As you walk around the room,you notice that the loudness of the soundalternates from loud to soft repeatedly.What is happening? 005 (part 2 of 2) 10.0 pointsWould anything be different if a 1000 Hzsound wave were used instead? 1. None of these 2.I and III only
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