What kind of image will you see through a convex lens? What factors might affect

Question

What kind of image will you see through a convex lens? What factors might affect the size of the image?

Explore

1.          Write a description of what happens to the image size when you change the position of the lens.

2.          Describe whether the image is upright or inverted.

1.          The graph shows Image Distance (vertical axis) versus Object Distance (horizontal axis). The graph also shows a curve fit for the data. Write a description of the graph.

2.          What value does the image distance approach as the object distance becomes larger?

3.          What value does the object distance approach as the image distance becomes larger?

4.          What is the significance of the values given in the previous two questions?

5.          What is the relationship between image distance and object distance? (Directly related or inversely related?) Give evidence supporting your answer.

6.          What is the relationship between object distance and image height? (Directly related or inversely related?) Give evidence supporting your answer.

7.          Where would you place the object to obtain an image as far away from the lens as possible?

8.          Where would you place the object to obtain an image located at the focal length of the lens (100 mm)?

9.          Using your answer from above and your experiences in this activity, explain why ‘fixed lens’ cameras require that the subject of the photo be a minimum distance from the lens.

Explanation / Answer

a convex lens produce different image depending on the position of the object

if object is placed beyond the center of curvature, a smaller , inverted image is formed between focal point and center of curvature.

if object is placed at center of curvature, an inverted image of same size as the object is formed at center of curvature on the other side.

if object is placed between center of curvature and focal point , a larger , inverted image is formed beyond the center of curvature on the other side .

if the object is placed closer than the focal point , an enlarged , erect and virtual image is formed on the same side as the object beyond the center of curvature.

2.

if the object distance is greater than the focal length , then image formed is inverted.

if the object distance is less than the focal length , then image formed is upright and virtual

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.