|
|
|
SNELL'S LAW by Alice Ken
|
|
|
SNELL'S LAW |
|
|
|
Education,Law,Writing
|
|
Snell’s law describes the relationship that exists between the angles of incidence and refraction when the light passes through a boundary of two different isotropic media. The relationship between angles and refraction was founded by Ptolemy. The law states that the sine ratio of the incidence angle and the refraction is equal to the ratio of the phase velocity in both media. The law can be derived from Fermat’s principle which states the light travels the path that takes the least time. The Snell’s law is used to compute either angle of incidence or refraction. It used in an experiment to find the refractive index of a specified material. The indices of the refraction are labeled as n1, n2 and are used to represent factors which light ray’s speed decreases when traveling through a refractive medium.as the light passes through a media, the lighter will either be refracted at a lesser angle or a greater angle. The angles are measured with respect to a normal line that is represented perpendicular to the boundary. Refraction between the two services can be referred to as reversible, this is because if all conditions were same, the angle would be same for the light that propagates from opposite direction. The law is satisfied in metamaterials which usually allows the light to bend backward at a negative angle of the refraction.
Related Articles -
SNELL’S, LAW,
|
Rate This Article |
|
|
|
Do you Agree or Disagree? Have a Comment? POST IT!
Reader Opinions |
|
|
|
|
|
|
|
|
Author Login |
|
|
Advertiser Login
ADVERTISE HERE NOW!
Limited Time $60 Offer!
90 Days-1.5 Million Views
|
|
TIM FAY
After 60-plus years of living, I am just trying to pass down some of the information that I have lea...more
|
|
|
|
|
LAURA JEEVES
At LeadGenerators, we specialise in content-led Online Marketing Strategies for our clients in the t...more
|
|
|
|
|
ALEX BELSEY
I am the editor of QUAY Magazine, a B2B publication based in the South West of the UK. I am also the...more
|
|
|
|
|
GENE MYERS
Author of four books and two screenplays; frequent magazine contributor. I have four other books "in...more
|
|
|
|
|
SUSAN FRIESEN
Located in the lower mainland of B.C., Susan Friesen is a visionary brand strategist, entrepreneur, ...more
|
|
|
|
|
STEPHEN BYE
Steve Bye is currently a fiction writer, who published his first novel, ‘Looking Forward Through the...more
|
|
|
|
|
SHALINI MITTAL
A postgraduate in Fashion Technology. Shalini is a writer at heart! Writing for her is an expression...more
|
|
|
|
|
ADRIAN JOELE
I have been involved in nutrition and weight management for over 12 years and I like to share my kn...more
|
|
|
|
|
JAMES KENNY
James is a Research Enthusiast that focuses on the understanding of how things work and can be impro...more
|
|
|
|