Two mirrors produce a realistic virtual image!
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Read more: How Does the Mirage Mirror Work?
Total internal reflection can be used to bend a beam of light.
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Read more: Internal Reflection
An example of how every day products can be optically active.
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A great way to show Total Internal Reflection and how it works!
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Read more: Lightpipe - Multiple Internal Reflections
A diffraction grating shows the distinct line pattern of a plasma.
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Read more: How to See Atomic Spectra