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Image formation in lens

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please study

please study

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  • 1. Objectives:
    Objectives:
    Compare the object and image in terms of
    a. size
    b. location from the lens
    c. orientation
    d. type
    1. Locate the image in a lens through ray diagram.
    2. Describe the image in terms of
    a. size b. location from the lens
    c. orientationd. type
  • 2. IMAGE FORMATION IN CONVEX LENS(CONVERGING)
  • 3. Rules
    1. Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens.
  • 4. 2. Any incident ray traveling through the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.
  • 5. OBJECT OUTSIDE 2F
    F
    2F
    F’
    2F’
    IMAGE: between F’ and 2F’, smaller, inverted, real
  • 6. OBJECT: BETWEEN 2F and F
    F
    2F
    F’
    2F’
    IMAGE: OUTSIDE 2F’ and F’, bigger, inverted Real
  • 7. OBJECT AT 2F
    F
    2F
    F’
    2F’
    IMAGE: AT 2F’, same size, inverted, real.
  • 8. OBJECT at F
    F
    2F
    F’
    2F’
    IMAGE: No image
  • 9. OBJECT between F and lens
    F
    2F
    F’
    2F’
    IMAGE: INFRONT of the lens, bigger, UPRIGHT, VIRTUAL
  • 10. OBJECT: at INFINITY
    IMAGE: Just a point, Real and Inverted
  • 11. IMAGE FORMATION IN CONCAVE LENS(DIVERGING)
  • 12. OBJECT: At any point.
    IMAGE: smaller, upright, virtual.
  • 13. Between F’ and 2F’, smaller, inverted, real
    At 2F’, same size, inverted, real
    Outside 2F’, bigger, inverted, real
    No image
    In front of the lens, bigger, upright, virtual
    In front of the lens, bigger, upright, virtual
    In front of the lens, bigger, upright, virtual
  • 14. Assignment:
    What are the equations in solving problems about lens?
    Bring scientific calculator