Lecture_29_PPT

Lecture_29_PPT - Chapter 18 Superposition and Standing...

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

View Full Document Right Arrow Icon
Chapter 18 Superposition and Standing Waves
Background image of page 1

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

View Full DocumentRight Arrow Icon
Two Pulses at a String z Two pulses are traveling in opposite directions z The wave function of the pulse moving to the right is y 1 and for the one moving to the left is y 2 z The pulses have the same speed but different shapes z The displacement of the elements is positive for both
Background image of page 2
Two Pulses at a String z When the waves start to overlap , the resultant wave function is y 1 + y 2 z When crest meets crest the resultant wave has a larger amplitude than either of the original waves
Background image of page 3

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

View Full DocumentRight Arrow Icon
Two Pulses at a String z Afterwards the two pulses separate z They continue moving in their original directions z The shapes of the pulses remain unchanged animation
Background image of page 4
Superposition Principle z If two or more traveling waves are moving through a medium, the resultant value of the wave function at any point is the algebraic sum of the values of the wave functions of the individual waves
Background image of page 5

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

View Full DocumentRight Arrow Icon
Superposition and Interference z Two traveling waves can pass through each other without being destroyed or altered z The combination of separate waves in the same region of space to produce a resultant wave is called interference
Background image of page 6
Destructive Interference z Two pulses traveling in opposite directions z Their displacements are inverted with respect to each other z When they overlap, their displacements partially cancel each other animation
Background image of page 7

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

View Full DocumentRight Arrow Icon
Types of Interference z
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 01/28/2011 for the course PHYS 011 taught by Professor Nianlin during the Fall '08 term at HKUST.

Page1 / 28

Lecture_29_PPT - Chapter 18 Superposition and Standing...

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