Optique Géométrique et Ondulatoire

    Cards (22)

    • What is the branch of optics that treats light as rays?
      Geometric Optics
    • How does geometric optics simplify the study of light?
      By treating light as rays traveling straight
    • What phenomena does geometric optics help to understand?
      How lenses and mirrors work
    • In geometric optics, how is light viewed?
      As rays traveling in straight lines
    • What does the reflection of light involve?
      Light bouncing off a surface
    • What is the angle of incidence?
      The angle light hits the surface
    • What is the angle of reflection?
      The angle light bounces back
    • What does the law of reflection state?
      The angle of incidence equals the angle of reflection
    • What is refraction?
      Light bending as it passes through materials
    • What does Snell's law describe?
      How much light bends when entering a new medium
    • What do n1 and n2 represent in Snell's law?
      The refractive indices of two materials
    • What happens when light enters a medium with a lower refractive index?
      It speeds up and bends away from the normal
    • What is the definition of the refractive index?
      Measure of how much light slows down
    • What are the steps to apply geometric constructions to form images?
      1. Identify the object and its position.
      2. Draw principal rays from the object:
      • Ray parallel to optical axis through focal point.
      • Ray through center of lens continues straight.
      • Ray through focal point becomes parallel after refraction.
      1. Determine where rays converge or diverge to form the image.
    • How do geometric constructions help in forming images?
      By tracing light rays in optical systems
    • What type of image is formed by a converging lens when the object is beyond the focal length?
      A real and inverted image
    • What is a common application of geometric optics in eyeglasses?
      Correcting vision by bending light
    • What are some applications of geometric optics?
      • Eyeglasses & Contact Lenses: Correct vision
      • Cameras: Focus light to create images
      • Telescopes & Microscopes: Magnify objects
      • Binoculars: Enhance long-distance vision
      • Projectors: Display images on large screens
      • Lasers: Emit coherent light for precision
    • How do cameras utilize geometric optics?
      By using lenses to focus light onto sensors
    • What benefit do telescopes provide through geometric optics?
      They magnify distant objects for observation
    • How do projectors use geometric optics?
      To display images or videos onto screens
    • What is a benefit of using lasers in geometric optics?
      They provide precision in cutting and medical procedures
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