Question

Name: Lab: Lens Ray Tracing Exercise Physics 182 Date:_ Ray Tracing for Lenses Predict the various values for the image distance, image height and magnification as well as describe the image type, image orientation and image size for the conditions given at the top of both tables. Use the thin lens equation and the magnification equation. Part Thin Lens Equation: = Magnification Equation: m Parti beton preoah ger ranlonch of the object ditance loatons aven in the tables 1. The principal axis (drawn with a ruler) 2. Use 3. Indicated the front and back focal points (f) 4. Draw the object as an upright arrow 3.0 cm high (scale vertically one block for each a vertical line to represent the converging lens. Center the lens on the principle axis. cm) at de in front of the lens (scale the horizontally one block for every 2 cm). 5. Draw the three rays using the rules given below. 6. If the rays converge, draw the arrow at this location. If the rays diverge, draw the image at the point from which the rays appear to emanate 7. Use the blocks on the graph paper to estimate the distance to the image from the lens and the height of the image. Ray tracing rules Converging (convex) Lens: object outside front focus. 1. In from object parallel to principle axis; out through back focus. 2. In from object through the front focus; out parallel to the principle axis. 3. In througl: the center of the lens; out undeviated. object inside front focus. 1. In from object parallel to principle axis; out through back focus. 2. In from object as though it came from the front focus; out parallel to the principle axis. 3. In through the center of the lens; out undeviated. object any distance from lens 1. In from object parallel to principle axis; out away from the front focus. 2. In from object heading for the back focus; out parallel to the principle axis. 3. In through the center of the lens; out undeviated. Part III Set up the optics bench as directed using the arrows on the light box as your object. Place the lens from the light box at the distances given in the table which represent do. Move the screen to see if you are able to find the projected image near the expected di for the image. Lab: Lens Ray Tracing Exercise Name: Physics 182 Date: Calculated using thin Ray Actual result lens equations. tracing using optics Calculated using thin RayActual result tracing using optics fs-15.0 cm, ho 3.0 cm bench. bench. 20.0 20.cm 8. Object Distance from lens, d 10.0 em 10.0 cm 20.0 cm 10.0 em cm 9. Image Distance from lens, d 10. Magnification, ms-d/de 11. Image Height, h 12. Real or Virtual Image? 13. Upright or Inverted Image? 14. Enlarged or Reduced Image? Date: Ray Actual result Calculated using thinRay Actual result Calculated using thin lens equations. f-20.0 cm, ho-3.0 cm bench bench. result. 10.0 10.0 cm 10.0 cm 1. Object Distance from lens, de 30.0 cm 30.0 cm 30.0 cm cm 2. Image Distance from lens, d 3. Magnification, m--d/d 4. Image Height, h 5. Real or Virtual Image? 6. Upright or Inverted Image? 7. Enlarged or Reduced Image?

Answer 1

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