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      • A concave lens is thinner in the middle than it is at the edges. This causes parallel rays to diverge They separate but appear to come from a principle focus on the other side of the lens. In a ray diagram, a concave lens is drawn as a vertical line with inward facing arrows to indicate the shape of the lens.
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      Convex and concave lenses - Lenses - AQA - GCSE Physics ...

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  4. www.savemyexams.com › gcse › physicsConvex & Concave Lenses | AQA GCSE Physics Revision Notes 2018

    Feb 27, 2024 · In a concave lens, parallel rays of light are made to diverge (spread out) from a point. This lens is sometimes referred to as a diverging lens. The principal focus is now the point from which the rays appear to diverge from. Parallel rays from a concave lens appear to come from the principal focus.

  5. openstax.org › books › physics16.3 Lenses - Physics - OpenStax

    The concave lens is a diverging lens because it causes the light rays to bend away (diverge) from its axis. In this case, the lens has been shaped so all light rays entering it parallel to its axis appear to originate from the same point, F, defined to be the focal point of a diverging lens.

  6. phys.libretexts.org › Bookshelves › University24.3: Lenses - Physics LibreTexts

    shows the effect of a concave lens on rays of light entering it parallel to its axis (the path taken by ray 2 in the figure is the axis of the lens). The concave lens is a diverging lens, because it causes the light rays to bend away (diverge) from its axis.

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  7. www.youtube.com › watchConcave lenses | Geometric optics | Physics | Khan Academy

    Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/science/physics/geometric-optics/le...

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  8. sciencenotes.org › concave-vs-convexConcave vs Convex - Science Notes and Projects

    Sep 9, 2023 · Concave lenses focus light inside the curve of the lens, while convex lenses focus light using the outer curve. A lens that curves like a “C” (no flat side) is both concave or convex, depending on which side of the lens you view from.

  9. www.explainthatstuff.com › lensesHow do lenses work? | What are the different types of lens?

    Dec 15, 2021 · Convex lenses bulge out in the middle like lentils, while concave lenses "cave in" in the middle and bulge out at the edges. How do lenses work? A lens works by refraction : it bends light rays as they pass through it so they change direction.

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