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Ray Diagrams For Lenses quiz #1

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Terms in this set (16)

  • Which type of lens allows you to view a magnified image of a distant object without moving closer to the subject?
    A converging (convex) lens allows you to view a magnified image of a distant object without moving closer, as it can produce a real, magnified image when the object is within the focal length.
  • What type of lens bends light rays inward toward a focal point?
    A converging (convex) lens bends light rays inward toward a focal point.
  • What kind of image can be produced by a concave (diverging) lens?
    A concave (diverging) lens produces only virtual, upright, and reduced images.
  • How many positions can a lens be placed to form a well-focused image of a candle flame on a wall?
    A lens can be placed in two positions to form a well-focused image of a candle flame on a wall, corresponding to the lens equation's symmetry for object and image distances.
  • What type of lens is used to make a magnifying glass?
    A magnifying glass uses a converging (convex) lens.
  • What type of images do diverging lenses produce for objects placed in front of them?
    Diverging lenses produce virtual, upright, and reduced images for objects placed in front of them.
  • What type of lens is used in a magnifying glass?
    A magnifying glass uses a converging (convex) lens.
  • What happens to incoming light rays that are parallel to the principal axis when they pass through a convex lens?
    Incoming light rays parallel to the principal axis are refracted by a convex lens and converge at the focal point on the opposite side of the lens.
  • What kind of lens can be used to produce a real image and what kind can be used to produce a virtual image?
    A converging (convex) lens can produce both real and virtual images, depending on the object's position. A diverging (concave) lens produces only virtual images.
  • How do parallel light rays pass through a converging lens?
    Parallel light rays passing through a converging lens are refracted and converge at the focal point on the opposite side of the lens.
  • What statements are true for images formed by thin lenses?
    Thin lenses can form real or virtual images depending on the lens type and object position. Converging lenses can produce both real and virtual images, while diverging lenses produce only virtual images. Real images are inverted; virtual images are upright.
  • How is the image produced by a lens described in terms of orientation and type?
    A converging lens can produce real, inverted images or virtual, upright images depending on object position. A diverging lens always produces virtual, upright images.
  • What is absorption in the context of ray diagrams for lenses?
    Absorption refers to the process where light energy is taken up by the material and not transmitted or refracted; in ray diagrams, absorbed rays do not continue through the lens.
  • What type of image does a lens produce when it forms a real image of a real object?
    When a lens produces a real image of a real object, the image is inverted and located on the opposite side of the lens from the object.
  • When using the lens equation, what is the sign convention for a real image?
    In the lens equation, a real image has a positive image distance (measured from the lens to the image on the opposite side from the object).
  • How is the image formed by a thin lens described in terms of position and orientation?
    The image formed by a thin lens can be real and inverted or virtual and upright, depending on the lens type and the object's position relative to the focal length.