Problem 9: Two converging lenses with focal lengths of 40 cm and 20 cm are 10 cm apart. A 2.0 cm tall object is 15 cm in front of the 40 cm focal length lens. a. Use ray tracing to find the position and height of the image. Determine the image distance and image height by making accurate measurements on your diagram. b. Calculate the image height and position relative to the second lens. Compare with your ray-tracing answers in part a. c. Clearly mark the object, image, object distance, image distance and focal length for both the lenses. d. Show all your calculations. e. Write down the image characteristics of each image.
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Q: TRIAL do ho di hi Case # 1 5 cm 15 cm 6 cm 2 5 cm 7.5 cm 3 cm 3 5 cm 2.5 cm 3 cm
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Q: Submit Request Answer Part C State whether the image is in front of or behind the mirror, and…
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- A slide projector needs to create a 98-cm-high image of a 2.0-cm-tall slide. The screen is 330 cm from the slide. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. Part A What focal length does the lens need? Assume that it is a thin lens. Express your answer with the appropriate units. Enter positive value if the lens is converging and negative value if the lens is diverging. f = 13.9 Submit Part B Lo S= μA 7 cm X Incorrect; Try Again; 3 attempts remaining Previous Answers Request Answer How far should you place the lens from the slide? Express your answer with the appropriate units. www μA cm ? Submit Previous Answers Request Answer ? X Incorrect; Try Again; 5 attempts remainingIP You have two lenses at your disposal, one with a focal length f₁ = 39.0 cm, the other with a focal length f₂ = -39.0 cm. Part A Which of these two lenses would you use to project an image of a lightbulb onto a wall that is far away? O the lens with a focal length f₁ O the lens with a focal length f2 Submit Part B If you want to produce an image of the bulb that is enlarged by a factor of 2.00, how far from the wall should the lens be placed? Express your answer with the appropriate units. d₁ = Request Answer Submit μA Value Request Answer Units ?A doctor examines a mole with a 15.5 cm focal length magnifying glass held 14.0 cm from the mole. a. Where is the image? (Enter the image distance in meters) b. What is its magnification? c. How big in millimeters is the image of a 5.30 mm diameter mole?
- A 3.0-cm tall object is 55 cm in front of a diverging mirror that has a -30 cm focal length. Part A Calculate the image position. Input a positive value if the image is on the same side from the mirror as the object and a negative value if the image is on the other side. Express your answer with the appropriate units. s' = Submit Part B h' = Submit HÅ Value Request Answer Calculate the image height. Express your answer with the appropriate units. ■ HÅ Value Units Request Answer www Units ? ?HW8 Q2 A concave lens has a focal length of -43 cm. Find the image distance that results when an object is placed 32 cm in front of the lens. Express your answer using two significant figures. Find the magnification that results when an object is placed 32 cm in front of the lens. Express your answer using two significant figures.You are standing 1.7 mm from a mirror, and you want to use a classic camera to take a photo of yourself. This camera requires you to select the distance of whatever you focus on. Part A What distance do you choose? Express your answer with the appropriate units. Part B If the mirror was on the Moon at a distance of 4.38×108 mm away, and you directed a laser beam towards it; how long would it take the beam to travel to the miror, get reflected, and return back to you?Hints:velocity=distancetime��������=������������c = 3 x 108 m/s Express your answer with the appropriate units.
- What is the focal length of a second lens that will produce a well-focused, 2.0-cm-tall image on the screen? A 1.0-cm-tall object is 110 cm from a screen. A diverging lens with focal length -20 cm is 20 cm in front of the object. Express your answer with the appropriate units. HÀ f2 = Value cm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B What is the distance from the screen of the second lens? Express your answer with the appropriate units. HÀ 四? Value cm %3D Submit Previous Answers Request AnswerA concave cosmetic mirror has a focal length of 30 cm. A 5.0-cm-long mascara brush is held upright 15 cm from the mirror. Part A Use ray tracing to determine the location of its image. Express your answer to two significant figures and include the appropriate units. Enter a positive value if the image is on the other side from the lens and a negative value if the image is on the same side. s = 30 Submit O Part B μA Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Check your sign. The image is on the other side from the mirror as an object. Part C cm What is the height of the image? Use ray tracing to determine. Express your answer to two significant figures and include the appropriate units. μA h=| Value Submit Request Answer ? Units ?standardized biological microscope has an 8.0-mm-focal- length objective. You may want to review (Pages 1005 - 1007). Part A For help with math skills, you may want to review: Rearrangement of Equations Involving Multiplication and Division What focal-length eyepiece should be used to achieve a total magnification of 100x? Express your answer to two significant figures and include the appropriate units. For general problem-solving tips and strategies for this topic, you may want to view Video Tutor Solution of Magnifier. µA feye = Value Units Submit Request Answer
- Part A A +2.0 D lens is being used to make an image of a distant object on a screen. The image is 2.8 cm tall. A second +2.0 D lens is added to the first, and the lens combination is moved to refocus the image. How tall is the new image? Express your answer with the appropriate units. HA h = Value cm Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide FeedbackAn object is placed 40.0 cm from a diverging lens with focal length 15.0 cm. a. Locate the image formed b. Find the magnification of the image c. Classify the image real/virtual upright/inverted reduced/enlarged/true to size d. Draw a corresponding ray diagram that confirms your results54. An object is placed 14.0 cm in front of a diverging lens with a focal length of -40.0 cm. a. N What are the location and magnification of the image? b. G Draw a ray diagram showing the locations of the object and the image by tracing at least two rays.