1 / 13

Wave Interference

Wave Interference. PHYS/MUS 102, Spring 2014. Longitudinal drawn as Transverse Waves. 2. But it can be represented by drawing our typical sine wave . 1. It’s a longitudinal wave. What happens when 2 pulses interfere ?. Destructive Interference. Constructive Interference.

morley
Download Presentation

Wave Interference

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Wave Interference PHYS/MUS 102, Spring 2014

  2. Longitudinal drawn as Transverse Waves 2. But it can be represented by drawing our typical sine wave 1. It’s a longitudinal wave

  3. What happens when 2 pulses interfere? Destructive Interference Constructive Interference

  4. Wave interference (aka superposition)

  5. What happens when 2 sources with different frequencies interfere?

  6. fsum = Answer: Beats! Questions: Where does occur in a music context, and what will this sound like?

  7. Tune up

  8. Two-source interference

  9. Quantifying intensity maxima m = 2 m = 1 Source 1 d m = 0 z Source 2 m = -1 m = -2 L

  10. Phase shift f

  11. Predicted (theoretical) locations of maxima/minima Maxima occur where: ml= d sin q = d (z/L) m = …-2, -1, 0, 1, 2 Minima occur where: (m+1/2)l = d sin q = d (z/L)

  12. Symphony of Superposition

  13. Image sources Boston University http://sirius.ucsc.edu/demoweb/cgi-bin/?waves-visible-intermodel http://www.paulfriedlander.com/text/timetravel/experiment.htm http://web.sbu.edu/chemistry/wier/electrons/young.html http://hyperphysics.phy-astr.gsu.edu/hbase/sound/beat.html#c2 http://www.animations.physics.unsw.edu.au/waves-sound/interference/ http://www.animations.physics.unsw.edu.au/jw/beats.htm http://www.phys.unsw.edu.au/jw/uncertainty.html

More Related