Image formation in lens

please study

1. Objectives: Compare the object and image in terms of a. size b. location from the lens c. orientation d. type Objectives: 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. orientation d. 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. 2F F F’ 2F’ OBJECT OUTSIDE 2F IMAGE: between F’ and 2F’, smaller, inverted, real

6. 2F F F’ 2F’ OBJECT: BETWEEN 2F and F IMAGE: OUTSIDE 2F’ and F’, bigger, inverted Real

7. 2F F F’ 2F’ OBJECT AT 2F IMAGE: AT 2F’, same size, inverted, real.

8. 2F F F’ 2F’ OBJECT at F IMAGE: No image

9. 2F F F’ 2F’ OBJECT between F and lens IMAGE: INFRONT of the lens, bigger, UPRIGHT, VIRTUAL

10. IMAGE: Just a point, Real and Inverted OBJECT: at INFINITY

11. IMAGE FORMATION IN CONCAVE LENS (DIVERGING)

12. OBJECT: At any point . IMAGE: smaller, upright, virtual .

13. OBJECT LOCATION IMAGE DESCRIPTION CONVEX LENS OUTSIDE 2F AT 2F BETWEEN F and 2F AT F BETWEEN F and LENS AT INFINITY CONCAVE LENS At any distance from the lens 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