You have a lens with a focal length of +7.5 cm. If you put an object a distance 10.7 cm from the lens, at what location will the image be focused? If your image distance is negative, be sure to include a negative sign in your answer. Your Answer: Answer
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cm from the lens, at what location will the image be focused?
If your image distance is negative, be sure to include a negative sign in your answer.
Your Answer:
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- A converging lens and a diverging lens, separated by a distance of 30.0 cm, are used in combination. The converging lens has a focal length of 15.3 cm. The diverging lens is of unknown focal length. An object is placed 19.5 cm in front of the converging lens; the final image is virtual and is formed 12.0 cm in front of the diverging lens. What is the focal length of the diverging lens?You want to purchase a microscope for doing surgeries, which requires that there is at least 10cm distance between the objective lens and the patient. The objective forms a highly magnified real image of the object at a distance L. You want the image to look 50 times larger. What should be focal lengths of the objective and the eye piece assuming L=200mmAn object of height 5.50 cm is placed 33.0 cm to the left of a converging lens with a focal length of 10.5 cm. Determine the image location in cm, the magnification, and the image height in cm. HINT (a) the image location in cm cm (b) the magnification (c) the image height in cm cm (d) Is the image real or virtual? O real virtual (e) Is the image upright or inverted? O upright O inverted
- An object is placed in 5 cm in front of a lens, producing an image that is upright and 3 times larger, m = +3. Determine the position of the image and the focal length of the lens.A convex lens made of glass (n = 1.50) has a focal distance of 20 cm. An identical looking piece of plastic with same shape and thickness has a focal distance of 25 cm. Which of the following could be the index of refraction of the plastic? O 1.0 O 1.4 O 1.6 O 1.5An object is placed 27 cm in front of a diverging lens having a focal length of magnitude 50 cm. What is the image distance, in cm? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
- Consider a converging lens with focal length 8.94 cm. The distance between an object and a real image of the object created by the lens is 41.5 cm. Find the distance between the object and the lens if the lens is closer to the object than it is to the image. Answer in cm.An object is 6 cm in front of a converging lens with a focal length of 10cm. Draw a ray diagram (to scale with a ruler) to find the location of the image. Is the image upright or inverted, and Is the image real or virtual? Then I want to use the thin lens formula to find the image distance and the magnification. I got stuck in the middle of this problem and am confused. Thank you for the help!Two converging lenses are separated by 27.0 cm. The focal length of each lens is 13.0 cm. An object is placed 37.0 cm to the left of the lens that is on the left. Determine the final image distance relative to the lens on the right.