1. What kind of image will you see through a convex lens? What factors might affect the size of the image?
2. What happens to the image if half of the lens is covered?
3. Draw a ray diagram below for a convex lens with a focal length of 3 cm. Place the object at 5 cm with a height of 1 cm.Is the image real or virtual? Is the image upright or inverted? How does the size of the image compare with the size of the object?
4. Draw a ray diagram below for a convex lens with a focal length of 5 cm. Place the object at 3 cm with a height of 1 cm.
5. Write a description of what happens to the image size when you change the position of the lens.)
6. Describe whether the image is upright or inverted.
7. What happens to the image if half of the lens is covered with an opaque object?
8. Fill in the data table and paste the graph for the convex lens here.
9. Fill in the data table and paste the graph for the concave mirror here.
10. The graphs show inverse image distance versus inverse object distance (horizontal axis). The graph also shows a curve fit for the data. Is image distance directly or inversely proportional to object distance? Write a description of the graphs.
11. For the lens and the mirror, what are the slope and the y-intercept from the linear fit to your data?
12. From the line fit, what is the focal length of each lens and mirror? Compare your measured value with the nominal value written on each by calculating a percent difference.
13. What value does the image distance approach as the object distance becomes larger?
14. What value does the object distance approach as the image distance becomes larger?
15. Where would you place the object to obtain an image as far away from the lens as possible?