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Lens prob

  1. May 30, 2005 #1
    Lez prob


    An object is moving with velocity 0.01 m/s towards a convex lens of focal length 0.3m. Find the magnitude of rate of
    separation of image from the lens when the object is at a distance of 0.4 m from the lens. Also calculate the magnitude of
    the rate of change of the lateral magnification

    Guys plz help :surprised
  2. jcsd
  3. May 30, 2005 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Start by finding the relationship between image distance and object distance for a convex lens. (Assume it's a thin lens.)
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