lec12a-203-08-standwaves

lec12a-203-08-standwaves - Wave Interference 12a-sw-1 10-3...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Wave Interference 12a-sw-1 10-3 8-2 12a-sw-2 Aside: M. Fourier proved that any (well behaved) wave* can be written as a sum of simple harmonic waves. 12a-sw-3 # of terms square wave triangle wave can handle anything just add up enough SH waves SH waves are all we need Flip-side of this: can break down any wave into Fourier SH components v = wave velocity +- Add up 2 waves point by point Interference partial/total cancelation/increase Constructive Interference = + Destructive Interference = + anything in-between 8-3 Interference: simple harmonic waves 12a-sw-4 12a-sw-5 /2 0 to 0 |max| to |max| /4 /2 Note: same 12a-sw-6 Standing Waves: e.g. string with fixed end points BOUNDARY CONDITIONS: no amplitude at ends L 1 L = 1 2 2 L = 2 2 3 L = 3 2 n L = n 2 :n = 1 ,2 ,3 ,4 ... n n v = f n 2 L = n n 1 n v v f = = n n f 2 L = 12a-sw-7 L 1 L = 1 2 2 L = 2 2 3 L = 3 2 n L = n 2 :n = 1 ,2 ,3 ,4 ......
View Full Document

Page1 / 18

lec12a-203-08-standwaves - Wave Interference 12a-sw-1 10-3...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online