Lec22 - cture 22- cture 22- 1 Maxwells Rainbow Light is an...

Info iconThis preview shows pages 1–8. 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: cture 22- cture 22- 1 Maxwells Rainbow Light is an Electromagnetic Wave cture 22- cture 22- 2 The Speed of Light Classic experiments to measure the speed of light: Galileo ( lantern and shutter ) Rmer ( eclipses of Io behind Jupiter ) Fizeau ( toothed wheel ) Foucault ( plane rotating mirror ) Michelson ( octagonal rotating mirror ) Michelson and Morley ( interferometer ) 299,792,458 / c m s Speed of light is not infinite! Speed of light is not dependent on the motion of source/observer ( no fixed ether ) cture 22- cture 22- 3 2008 by W.H. Freeman and Company cture 22- cture 22- 4 Refraction and Transmission incident ray reflected ray refracted ray Medium 1 Medium 2 When light encounters an interface between different media, it can generally both reflect and refract . (This speed can even depend on wavelength.) Light can travel through matter medium as well as free space (vacuum). Inside matter, the speed of light v is generally less than c . ( 29 , 1 c v c n v < index of refraction cture 22- cture 22- 5 Determine the speed of light c using static measurements __1____ = 2.99792458 m/s ( o o ) o = 8.8541 x 10-12 C 2 /(N.m 2 ) o = 4 x 10 -7 N/A 2 Coulombs law Amperes law cture 22- cture 22- 6 2008 by W.H. Freeman and Company cture 22- cture 22- 7 PHYSICS 241 READING QUIZ 1 Which of the following statements is incorrect?...
View Full Document

This note was uploaded on 12/07/2011 for the course PHYS 241 taught by Professor Wei during the Fall '08 term at Purdue University-West Lafayette.

Page1 / 28

Lec22 - cture 22- cture 22- 1 Maxwells Rainbow Light is an...

This preview shows document pages 1 - 8. Sign up to view the full document.

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