Image formation in lens

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Image formation in lens

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

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