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Join PAF - Academic Test - Physics - Waves - Quiz 3

Practice 10 high yield MCQs on Physics from Chapter Waves for Academic Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 3 of the series.

21. What happens in constructive interference?



22. What happens in destructive interference?



23. What is the equation of a wave moving in +x direction?



24. What is the wave number?



25. What is the phase velocity?



26. What is the speed of sound in air at 20°C?



27. What determines the pitch of a sound?



28. What determines loudness?



29. What is the human hearing range?



30. What is ultrasound?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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