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Back to 17.5 Sound Interference and Resonance: Standing Waves in Air Columns

17.5 Exercise 13

Avg difficulty 2.5

When a student blows across a glass half-full of water, a resonant frequency is created within the air column remaining in the glass. Which of the following can the student do to increase this resonant frequency?

  1. Add more water to the glass.
  2. Replace the water with a more dense fluid.
  3. Increase the temperature of the room.
  1. I only
  2. I and III
  3. II and III
  4. all of the above

OpenStax College Physics 2e, 17.5 Sound Interference and Resonance: Standing Waves in Air Columns, exercise 13

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.