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

17.5 Exercise 5

Avg difficulty 2.5

A student sends a transverse wave pulse of amplitude A along a rope attached at one end. As the pulse returns to the student, a second pulse of amplitude 3A is sent along the opposite side of the rope. What is the resulting amplitude when the two pulses interact?

  1. 4A
  2. A
  3. 2A, on the side of the original wave pulse
  4. 2A, on the side of the second wave pulse

OpenStax College Physics 2e, 17.5 Sound Interference and Resonance: Standing Waves in Air Columns, exercise 5

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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.