Skip to Content Go to sign in Skip to Primary Navigation Skip to Page Navigation Skip to Header Navigation Skip to Footer Navigation Toggle Accessibility Options or learn more about accessability

Physics Classroom is making strides to make our site accessible to everyone, and features many accessibility features.

Our site contains 6 navigation areas. The Primary, Secondary, and Page Level navigations have a screen reader version of their nav structure that allows using the left and right keys to navigate sibling navigation items, and up or down keys to navigate parent or child navigation items. The others can be navigated using tabs.

Within the main content, we leverage headers to provide in page or in tool navigation.

Although we are still rebuilding our content to leverage these tools, our images should have both short and verbose descriptions, the later describing in great detail the image for those who cannot see. Any formulas found within the images are often in the image figure below the image.

Equations and formulas are rendered using MathJax, which has both verbal, braille (including nemath braille), and keyboard navigation within them. Learn how to configure and leverage this for various screen readers on our Equation Navigation Page.

While not every area of Physics Classroom is usable purely from keyboard and screen reader, we are committed to continue work on making this possible. If you have questions or need additional help, please use this link to contact us .

Return to screen reader navigation

Light Waves and Color




Photos from The Physics Classroom's Flickr Group

Lesson 1: How Do We Know Light Behaves as a Wave?

Lesson 1 discusses the wavelike behaviors of light. An effort is made to associate the behavior of light reflection, refraction, diffraction, two-point source interference, thin film interference, and polarization with wave-like behavior. Items in the group's pool include photos of Polaroid filters, the use of filters to analyze stress patterns in molded plastics, birefringence caused by calcite crystals, thin film interference patterns, Newton rings, diffraction patterns, and much more. Photos complement many of the discussions from Lesson 1 of the Light Waves and Color chapter of The Physics Classroom Tutorial.

See more in the The Physics Classroom Flickr Group - Unit 12, Lesson 1 Photos
www.flickr.com


Lesson 2: Color and Vision

Lesson 2 emphasizes how simple principles of color addition and subtraction can be used to explain the world of color. Items in the group's pool include photos of paint pigments, colored filters, colored shadows, harvest moons, and much more. Photos complement many of the discussions from Lesson 2 of the Light Waves and Color chapter of The Physics Classroom Tutorial.

See more in the The Physics Classroom Flickr Group - Unit 12, Lesson 2 Photos
www.flickr.com


Lesson 3: Mathematics of Two-Point Source Interference

Lesson 3 discusses the development of Young's equation and its use to determine the wavelength of light. Items in the group's pool include diagrams of diffraction and two-point source interference patterns and photos of ripple tank experiments, interference patterns on still water, and much more. Photos complement many of the discussions from Lesson 3 of the Light Waves and Color chapter of The Physics Classroom Tutorial.

See more in the The Physics Classroom Flickr Group - Unit 12, Lesson 3 Photos
www.flickr.com


Tired of Ads? Go Ad Free ($5/year))