59. A converging lens with a focal length of 40 cm and a diverging lens with a focal length of -40 cm are 160 cm apart. A 2.0-cm-tall object is 60 cm in front of the converging lens. a. Use ray tracing to find the position and height of the image. To do this, accurately use a ruler or paper with a grid. Determine the image distance and image height by making measurements on your diagram. b. Calculate the image height and image position relative to the second lens. Compare with your answers in part a.

59. A converging lens with a focal length of 40 cm and a diverging lens with a focal length of -40 cm are 160 cm apart. A 2.0-cm-tall object is 60 cm in front of the converging lens. a. Use ray tracing to find the position and height of the image. To do this, accurately use a ruler or paper with a grid. Determine the image distance and image height by making measurements on your diagram. b. Calculate the image height and image position relative to the second lens. Compare with your answers in part a.

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d. Suppose an object is located 3.50 meters in front of a curved mirror, and produces an image 2.00 meters behind the mirror. Calculate the focal length of the mirror and state whether the mirror is converging (concave) or diverging (convex). What is the magnification of the image? What is the radius of curvature of the mirror? e. Suppose converging lens has a focal length of 14.0 cm, and the lens is illuminated from the left to the right. If an object is placed 20.0 cm to the left of the lens, where is the image and its magnification? f. In part e, what is the diopter measure of the converging lens?
Which of the following statements for single optic devices are true? Choose all that apply. a. Any physicist worth their weight in garbanzo beans (not chick peas) knows that concave lenses will have a positive focal length. b. For virtual images, the image distance is positive and the object distance is negative. c. By convention, if the image height is positive then the image is upright. d. If an optic produces an image with a magnification of 0.6, then the image is diminished. e. Experiments have shown that convex mirrors can create real images. f. If an image has a magnification of -6, then the image is real.
2. An object is placed 50 ?? from a convex lens having a focal length of 13.5 ??.a. Calculate the image distance. b. Calculate the magnification of the lens. c. State whether the image is real or virtual, upright or inverted and larger or smaller thanthe object. d. Draw a diagram of the lens in its present configuration.
Ahmad has a far point of a mere 50 cm. He uses a contact lens to see the distant objectclearly. What is/are the condition(s) about the contact lens? A. The contact lens is a concave lens.B. The contact lens is a diverging lens.C. The focal length of the contact lens is -50 cm.D. The power of the contact lens is -2.0 D
provide justification
w9-8 A diverging lens has a focal length of −8.00 cm. What is the nature of the image formed when the object is placed at a distance of 24.2 cm from the lens? a. virtual, upright, and diminished b. real, inverted, and diminished c. virtual, upright, and enlarged d. real, inverted, and enlarged
A. If a 4.3 cm doll is standing away from a converging lens and the focal length is 8.2 m, find the image distance, magnification, and image height from 4, 8, and 10 m away. B. Determine if the image is real or virtual, inverted or erect, and smaller or larger. Use the formula below:
A simple magnifier has a focal length, f = +10 cm. true or false if: A. It uses a converging lens. B. Its optical power is +10 D. C. The final image can be projected on a screen
I know it’s not real and virtual. I don’t think it’s real so I’m thinking it’s just virtual but I’m not sure.
A student tries to use a diverging lens as a magnifier. She observes a coin placed at the focal point of the lens. She seesA. An upright image, smaller than the object.B. An upright image, larger than the object.C. An inverted image, smaller than the object.D. An inverted image, larger than the object.E. A blurry image.
3. In order to see an upright and magnified virtual image using a converging (positive) lens with a focal length of f, the object distance (d) must be: A. 0
4. A concave lens has focal length of 27 cm. At what distance from the lens a tall object be placed so that it forms an image at 18 cm from the lens? Answer: b =