Answer by Phil Freedenberg for Why doesn't a light ray bend again when...
You can think of a convex-convex lens as (approximately) one prism on top of another. The light rays bend at both air interfaces.
View ArticleAnswer by Draconis for Why doesn't a light ray bend again when emerging from...
That diagram shows what's called the "thin lens" approximation.In real life, lenses have thickness, and light rays get refracted both when entering and exiting the material. But in practice, this...
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Answer by Thomas Fritsch for Why doesn't a light ray bend again when emerging...
You are right. The drawing shown in your question is quite poor.Here is a much better drawing, which correctly showsthe refraction of rays on both convex surfaces.The rays bend towards the normal when...
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Answer by SuperCiocia for Why doesn't a light ray bend again when emerging...
They technically should "bend" because of refraction, and a more accurate drawing would be this:But drawings like the one that you show usually just tell you the net effect of the lens, i.e. treating...
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Why doesn't a light ray bend again when emerging from a lens?
This image is a representation for light passing through a convex lens. It shows light entering from air to glass. When the light enters the glass we can see that it bends towards the normal. Now when...
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