Register to reply

How the snell's law come?

by 3.14lwy
Tags: snell
Share this thread:
3.14lwy
#1
Oct20-04, 07:26 AM
P: 15
what is the snell's law?

and how to show this
n = sin(i)/sin(r)

(where
n = refractive index
i = angle of incident
r = angle of refraction )
??

thank you!
Phys.Org News Partner Physics news on Phys.org
Physicists unlock nature of high-temperature superconductivity
Serial time-encoded amplified microscopy for ultrafast imaging based on multi-wavelength laser
Measuring the smallest magnets: Physicists measured magnetic interactions between single electrons
spacetime
#2
Oct20-04, 07:41 AM
P: 119
You can derive snell's law from Fermat's principle of least time

http://www.physics.yorku.ca/undergra...ch/SNELL3.html

Another derivation can be done using Huygen's principle.



spacetime
www.geocities.com/physics_all/index.html
Claude Bile
#3
Oct20-04, 08:51 PM
Sci Advisor
P: 1,474
Or you can just solve Maxwell's equations with appropriate boundary conditions.

Claude.

snbose
#4
Oct21-04, 12:04 AM
P: 19
How the snell's law come?

Quote Quote by Claude Bile
Or you can just solve Maxwell's equations with appropriate boundary conditions.

Claude.
Righto!!!

Maxwell's equations on EM Waves will provide the most elegent proof of Snells Law, Laws of Reflection and all the rest. You can read it from David Griffits "Intro ...to Electrodynamics".


Register to reply

Related Discussions
Snell's Law General Physics 1
Snell's law Introductory Physics Homework 4
Snell's Law General Physics 4
Snell's Law Special & General Relativity 1
Snell's Law Introductory Physics Homework 1