A converging lens of focal length 8.325cm is 18.5cm to the left of a diverging lens of focal length -4.00cm. A coin is placed 18.0cm to the right of the diverging lens. Find the distance of the coin's final image. Find the magnification of the coin's final image.
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A converging lens of focal length 8.325cm is 18.5cm to the left of a diverging lens of focal length -4.00cm. A coin is placed 18.0cm to the right of the diverging lens. Find the distance of the coin's final image. Find the magnification of the coin's final image.
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- A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.92 mm. With the length of the barrel set at 34.0 cm, the diameter of a red blood cell's image subtends an angle of 1.43 mrad with the eye. If the final image distance is 34.0 cm from the eyepiece, what is the actual diameter of the red blood cell? Hint: To solve this equation, go back to basics and use the thin-lens equation.An individual is nearsighted; his near point is 18.0 cm and his far point is 42.0 cm. (a) What lens power is needed to correct his nearsightedness? diopters (b) When the lenses are in use, what is this person's near point? cmSuppose a lens is placed in a device that determines its power as 2.64 diopters. (a) Find the focal length of the lens. f = cm I'M STUCK! (b) Find the minimum distance at which a patient will be able to focus on an object if the patient's near point is 49.3 cm. Neglect the eye-lens distance. cm d min
- An image is located 346 mm behind a 204 mm focal length lens. A) Find the object distance. B) Find the magnification of the image. C) Is the image upright or inverted? factor of 4 or when you place it 8.0 cm behind a lens theA diverging lens has a focal length of magnitude 20.8 cm.(a) Locate the images for each of the following object distances.41.6 cmdistance ? cm 20.8 cmdistance ?cm 10.4 cmdistance ?cm Find the magnification for the object at distance 41.6 cm. Find the magnification for the object at distance 20.8 cm. Find the magnification for the object at distance 10.4 cm.The near point of a person's eye is 72.0 cm. (Neglect the distance from the lens to the eye.) (a) To see objects clearly at a distance of 26.0 cm, what should be the focal length of the appropriate corrective lens? cm(b) To see objects clearly at a distance of 26.0 cm, what should be the power of the appropriate corrective lens? diopters
- (a) For a converging lens with a focal length of 3.50 cm, find the object distance that will result in an inverted image with an image distance of 5.00 cm. diagram to verify your calculations. Use a ray (b) Is the image virtual or real? (c) What is the magnification?Two converging lenses, each of focal length 15.1 cm, are placed 40.0 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed? The image is located 9.6| x 26.3 Your response differs from the correct answer by more than 10%. Double check your calculations. cm in front of the second lens. in front of the second lens. What is the magnification of the system? M = |-3.167 X -2.78 Your response differs from the correct answer by more than 10%. Double check your calculations.X Need Help? Read It1) Calculate the magnification of the 36-in refractor at Lick Observatory on Mount Hamilton near San Jose, California. The focal lenght of the objective lens is 17.37m, and the focal lenght of the eyepiece is 22 mm. (Express your answer to three significant figures.) 2) What is the significance of the negative sign in the magnification equation? a) The image is inverted when viewed in the eyepiece. b) The image is upright when viewed in the eyepiece.
- Q4) The focal length of the eyepiece of a certain microscope is 18.0mm. The focal length of the objective is 8.00mm. The distance between objective and eyepiece is 19.7cm. (a) What is the distance from the objective to the object being viewed? (b) What is the magnitude of the linear magnification produced by the objective? (c) What is the overall angular magnification of the microscope?A microscope has an eyepiece with a focal length of 18.0 mm, and an objective with a focal length of 8.00 mm. Thelenses are separated by 19.7 cm. A) If the final image is located infinitely far away, where is the object located? B) What is the total magnification?A converging lens has a focal length of 20.0 cm. Locate the image for object distances of (a) 40.0 cm, (b)20.0 cm, and (c) 10.0 cm. For each case, state whether the image is real or virtual and upright or inverted.Find the magnification in each case.