Topics
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Snell's Law
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Refraction
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Reflection
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Optics
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Prisms
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Lenses
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Light
Description
Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows.
Sample Learning Goals
- Explain how light bends at the interface between two media and what determines the angle.
- Apply Snell’s law to a laser beam incident on the interface between media.
- Describe how the speed and wavelength of light changes in different media.
- Describe the effect of changing wavelength on the angle of refraction.
- Explain how a prism creates a rainbow.
Version 1.1.20
HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.
iPad:
iOS 12+ Safari
iPad compatible sims
Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.
Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims
Windows Systems:
Microsoft Edge, latest version of Firefox, latest version of Google Chrome.
Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.
Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.