Or when you look for a clip art of a prism

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  • #1
Borek
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splitting white light, and turns out refraction is... complicated

1667034728291.png
 
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  • #3
Hornbein
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Would it be possible to make a prism with a negative index of refraction?
 
  • #5
DrGreg
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One of those images must be a triangular hole through a large block of glass.
 
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Vanadium 50
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Would it be possible to make a prism with a negative index of refraction?
Used them - well, actually senses, but the same idea - in a freshman physics lab I taught. They are air filled, and you make the measurements in a water tank. Concave is focusing.
 
  • #7
Frabjous
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I think this is the most popular version :wink:
(over 45 million sold according to wikipedia)

1667250320748.png
 
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gmax137
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I think this is the most popular version :wink:
I read somewhere recently, that is the most widely recognized "logo" worldwide.
 
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Its sad to see that the illustrations are either poor or flat out wrong and that they got published anyway.
 
  • #10
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I read somewhere
:wink:
the most widely recognized "logo" worldwide.
I'm not sure I buy that. There's some stiff competition.
1667257882816.png

1667257949184.png

1667257910915.png

1667258031150.png
 
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  • #11
hutchphd
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Used them - well, actually senses, but the same idea - in a freshman physics lab I taught. They are air filled, and you make the measurements in a water tank. Concave is focusing.
I presume you meant lenses.
I recall teaching a sound lab using convex mylar helium filled balloons in air as diverging lenses.

There are general principles that make the light dispersion itself monotonic. As I recall this follows from the Kramers-Kronig relations.
 
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