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31 Multiple choice questions

  1. a standing wave
  2. 1000 Hz
  3. one-ninth
  4. harmonics.
  5. 4 Hz
  6. of slightly different frequencies.
  7. one wavelength
  8. plane waves.
  9. solids than through gases.
  10. power.
  11. 495 Hz
  12. all waves.
  13. 416 Hz
  14. steel at 0 degrees Celsius.
  15. are longitudinal waves.
  16. 8 Hz
  17. frequency
  18. 70 dB
  19. all harmonics are present.
  20. 2L.
  21. an area perpendicular to the direction of propagation.
  22. a rarefaction.
  23. The pitch will not change.
  24. decibels.
  25. compression
  26. by 20 units.
  27. only odd harmonics are present.
  28. two antinodes and one node.
  29. higher in pitch than
  30. 3 Hz
  31. resonance