6) a) Calculate the power of a 35-cm-focal length lens? b) What is the focal length of a -5.25D lens?
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6) a) Calculate the power of a 35-cm-focal length lens? b) What is the focal length of a -5.25D lens?
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- A large reflecting telescope has an objective mirror with a 10.0 m radius of curvature. What angular magnification does it produce when a 1.50 cm focal length eyepiece is used? answer choices a)-1.67x b)-333x c)-167x d)-525x8. A nearsighted man uses his ideally prescribed eyeglasses that have a refractive power of -2.50 diopters. He would like a prescription for contact lenses. What is the correct contact lens prescription if he normally wears his eyeglasses a distance of 3.0 cm from his eyes? diopters oof3. What would happen to s' if s is very very large? (hint = object is at infinity) 4. For the lens of focal length f, what value of s (in terms of f) would give the magnification of -1?
- Ch24,MC15Needs Complete solution with 100 % accuracy don't use chat gpt or ai plz plz plz plz plz send.13) Mike takes a picture of Cathy using a single convergent lens camera with a focal length f-5 cm, the first picture is a close up taken with Cathy at doi - 20 cm, the second picture is taken with Cathy standing dez-20 m -20,000 cm away from the lens. What is the distance Mike must move the lens on his camera to keep Cathy in focus for both shots?
- 4. Your Aunt Sonia has vision with a near point of 65 cm and a far-point of . Calculate the: a) focal length, and b) Lens Power, of corrective optics (glasses) that you should get for her at the drug store so that objects placed at the normal near point (25 cm) will be in focus. Assume that both eyes need the same correction and that the lenses will be placed 2 cm in front of her eyes. (Hint: for an object placed at the normal near point, the lens must form an image of the object at her near point).6. A 2.0 cm tall object is 15 cm in front of a converging lens that has a 20 cm focal length. (a) Use ray tracing to find the position and height of the image. To do this accu- rately, use a ruler or a paper with a grid. Determine the image distance and image height by making measurements on your diagram. (b) Calculate the image position and height. Compare with your ray-tracing an- swers in part a.help