About Light

| Onsite |

 

Newton proved that white light is a blend
of all the colors of the rainbow

 

 

White Light Animation

(Right Click, Save As)

Penn State

 

 

 

2. Dispersion – separation of polychromatic light into its component wavelengths (colors)



Wikipedia - Public Domain

 

 

Name that tune!

 

 

Trivia

What famous album cover
has a prism on the front? Their big hit?

 

 

Each Color has

A Different Wavelength

 

 

 

NASA

 

 

 

Red - fastest
(slowed least),
bent least

Violet - slowest
(slowed most),
bent most


Lucas V. Barbosa

 

 

 

 

Dispersive Medium – medium in which the velocity of wave depends on frequency

(makes rainbows)

ex) Glass, water 

 

Nondispersive - Air

 

Refraction with Polychromatic Light
(Angle, Index of refraction)
Molecular Expressions  - FSU

 

http://www.freeimages.co.uk/

 

 

 

Review

What is the name for this special kind of reflection?

http://en.wikipedia.org/wiki/File:TIR_in_PMMA.jpg

 

 

 

 

Total internal reflection in a bar of PMMA.
The laser is HeNe laser

 

 

Enrichment

Review Video

| Onsite |

 

Refraction/Dispersion Simulations

University of Utah

 

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Use any material on this site (w/ attribution)