quiz11

  1. A 2.00cm tall object is placed 30.0 cm in front of a lens. An image is formed 30.0 cm behind the object (farther from lens, and on the same side as the object). The image is
    a) real, and upright.
    b) real, and inverted.
    c) virtual, and upright.
    d) virtual, and inverted
    e) no image is formed.
    No answer given yet
  2. Given the situation in problem 1, the focal length of this lens is
    a) 90cm
    b) -90cm
    c) 60cm
    d) -60cm
    e) 45cm
    No answer given yet
  3. For the situation of problem 1, the height of the image is
    a) +2.0cm
    b) -2.0cm
    c) +4.0cm
    d) -4.0cm
    e) no image is formed
    No answer given yet