2-) Three experiments are performed with a convex lens: - When the distance between object and lens is 25 cm, the image appears at 27 cm away from lens. - When the distance between object and lens is 30 cm, the image appears at 20 cm away from lens. - When the distance between object and lens is 35 cm, the image appears at 16 cm away from lens. Calculate the focal length of convex lens graphically. Calculate percent error. (f=12 cm)

2-) Three experiments are performed with a convex lens: - When the distance between object and lens is 25 cm, the image appears at 27 cm away from lens. - When the distance between object and lens is 30 cm, the image appears at 20 cm away from lens. - When the distance between object and lens is 35 cm, the image appears at 16 cm away from lens. Calculate the focal length of convex lens graphically. Calculate percent error. (f=12 cm)

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter35: Image Fonnation

Section: Chapter Questions

Problem 27P: A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located at a...

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A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo the calculations if the images are virtual and located at a distance from the lens of (c) 20.0 cm and (d) 50.0 cm.
. A small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 10 cm. Determine the location of the image formed by the lens. Describe the image.
A particular nearsighted patient cant see objects clearly beyond 15.0 cm from their eye. Determine (a) the lens power required to correct the patients vision and (b) the type of lens required (converging or diverging). Neglect the distance between the eye and the corrective lens.
If the lens of a person’s eye is removed because of cataracts (as has been done since ancient times), why would you expect a spectacle lens of about 16 D to be prescribed?
Give three advantages that the Fresnel lens design has over that of a conventional lens with the same size and focal length.
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.50 mm. With the length of the barrel set at 29.0 cm, the diameter of a red blood cells image subtends an angle of 1.43 mrad with the eye. It the final image distance is 29.0 cm from the eyepiece, what is the actual diameter of the red blood cell? Hint: To solve this question, go back to basics and use the thin-lens equation.
The image produced by the microscope in Figure 2.38 cannot be projected. Could extra lenses or mirrors project it? Explain.