Lecture 8 - Standing Waves (Ch. 14.3-14.5)

Lecture 8 - Standing Waves (Ch. 14.3-14.5) - Lecture 8...

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

View Full Document Right Arrow Icon
Lecture 8 Superposition and Standing Waves Ch 14
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
Consider the superposition of two sinusoidal waves moving to the right with the same frequency and wave number along the SAME STRING: Total: A Constant that depends on the difference in phase Result is a sinusoidal wave, traveling to the right but with a different amplitude that depends on the phase difference.
Background image of page 3

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

View Full DocumentRight Arrow Icon
Wavelength shift and phase difference o It is often useful to express the phase difference between two waves in terms of the fraction of the wavelength. o For example: a phase difference of φ = π /2 is a 1/4th wavelength shift.
Background image of page 4
Standing Waves Suppose you have 2 waves traveling in opposite directions in the same medium. Use again: Not a traveling wave, but rather a wave that oscillates in space with an amplitude that varies in time. This is a standing wave.
Background image of page 5

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

View Full DocumentRight Arrow Icon
Standing Wave (Black Line) N= Node: where the amplitude of the summed wave is zero AN= Antinode: where the amplitude of the summed wave is maximum N N
Background image of page 6
Standing Wave
Background image of page 7

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

View Full DocumentRight Arrow Icon
Nodes & Antinodes Antinodes occur when Nodes occur when Distance between a Node and adjacent Antinode is λ /4.
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/08/2008 for the course PHYS 3B taught by Professor Wu during the Spring '08 term at UC Irvine.

Page1 / 24

Lecture 8 - Standing Waves (Ch. 14.3-14.5) - Lecture 8...

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