erna
Uploaded by
10 SLIDES
186 VUES
100LIKES

Light Refraction in Optical Phenomena

DESCRIPTION

Explore refraction, Snell's Law, reflections, halos, and more. Learn about Fermat's Principle and how light paths are optimized. Discover the wonders of optical physics.

1 / 10

Télécharger la présentation

Light Refraction in Optical Phenomena

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Refraction n1 = 1 1 1 1 2 n2 > 1 2 2 Radius = vT = (c/n)T

  2. Triangle hcg sin 2 = 2/hc Triangle hce sin 1 = 1/hc sin 1 /sin 2 = 1 /2 = (v1/f) / (v2/f) = v1/v2 = (c/n1)/(c/n2) = n2/n1 n1 sin 1 = n2 sin 2 Snell’s Law

  3. n1 sin 1 = n2 sin 2 2=/2 ==> sin c = n2/n1 Water n=1.5 Air n=1. c= 41.80 Reflection refraction

  4. 1 2 3 4 Halo

  5. 1200 1 2 3 4 Sun Dogs n sin2=sin 1 n sin3=sin 4 2 + 3 = 600 Deflection = 1 + 4 - 600 n=1.33

  6. nred < nblue vred=c/nred > vblue =c/nblue prism

  7.  Fermat’s Principle • The path taken by light in travelling from one point to another is such that the time of travel is a minimum

  8. Refraction • Minimize t with respect to x • dt/dx=0 using dL1/dx=x/L1 =sin1 and dL2/dx=(x-d)/L2 = -sin2 • dt/dx=(n1sin 1 - n2 sin 2)/c = 0 Time?

More Related