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- People who do very detailed work close up, such as jewelers, often can see objects clearly at much closer distance than the normal 25 cm. (a) What is the power of the eyes of a woman who can see an object clearly at a distance of only 8.00 cm? (b) What is the image size of a 1.00-mm object, such as lettering inside a ring, held at this distance? (c) What would the size of the image be if the object were held at the normal 25.0 cm distance?arrow_forward(a) What magnification is produced by a 0.150 cm-focal length microscope objective that is 0.155 cm from the object being viewed? (b) What is the overall magnification if an 8 x eyepiece (one that produces an angular magnification of 8.00) is used?arrow_forwardA doctor examines a mole with a 15.0-cm focal length magnifying glass held 13.5 cm from the mole. (a) Where is the image? (b) What is its magnification? (c) How big is the image of a 5.00 mm diameter mole?arrow_forward
- A 2.40-cm-high insect is 1.30 m from a 129-mm-focal-length lens. Where is the image? Follow the sign conventions. Express your answer to three significant figures and include the appropriate units. dil = 0.143 m Submit Previous Answers Part B Correct How high is the image? Follow the sign conventions. Express your answer to three significant figures and include the appropriate units. hil -2.64x10-3 m Submit Previous Answers ▸ Part C Part D Correct Where is the image of the insect if the focal length of the lens is f = -129 mm? Follow the sign conventions. Express your answer to three significant figures and include the appropriate units. HA di2 Value Units Submit Request Answer Part E ? How high is the image of the insect if the focal length of the lens is f = -129 mm? Follow the sign conventions. Express your answer to three significant figures and include the appropriate units. ha = Value ΜΑ Units ?arrow_forwardq37 An object (height = 8.2 cm) and its image are on opposite sides of a converging lens. The object is located 19.0 cm from the lens. The image is located 5.5 cm from the lens. Determine the magnification. Enter the numerical part of your answer to two significant figures. Hint: Remember that the sign of the magnification is significant.arrow_forwardAn object is 19.5 cm from the center of a spherical silvered-glass Christmas tree ornament 6.20 cm in diameter. ▼ Part A What is the position of its image (counting from the ornament surface)? Follow the sign rules. Express your answer with the appropriate units. s' = Submit ▾ Part B m = HA Value Submit Request Answer What is the magnification of its image? VG ΑΣΦ Units Request Answer PYREX ? ?arrow_forward
- We use a lens of focal length f = 4.8 mm in order to project an image of an object AB (height = 1.6 cm) placed at 24 mm of the lens. Determine the position and the size of the image A'B'. 1) Calculation а. Write the thin lens formula b. Use it to determine the distance between the lens and the image. Use this result in order to determine the magnification of the projection. с. d. Determine the size of the image A'B'.arrow_forwardA diverging lens has a focal length of 20.0 cm. Use graph paper to construct accurate ray diagrams for object distances of (a) 40.0 cm and (b) 10.0 cm. In each case determine the location of the image from the diagram and the image magnification, and state whether the image is upright or inverted. (c) Estimate the magnitude of uncertainty in locating the points in the graph. Are your answers and the uncertainty consistent with the algebraic answers found in Problem 33?arrow_forwardImagine you were provided with a lens, lens holder, screen, sheet of paper, meter rule, clamp& stand, cross wires(object) and a touch light source. Identify the type of lens you have been provide with. Explain your answer Hence write down: two characteristics of the image formed the distance d of the image formed from the lens what is the significance of d? Justify your answerarrow_forward
- Answer the following questions about magnification with expressions: a) What magnification is produced by a “f” focal length microscope objective that is “d_o” from the object being viewed? b) What is the overall magnification if an Mx eyepiece (one that produces an angular magnification of M) is used? Give in terms of M and the variables given in part a.arrow_forward1. You have a thin lens of focal length 50 mm. a. The object is 100 mm to the left of the lens. Where is the image located (that is, what is the image distance q, including sign - express in millimeters)? Is the image real or virtual? What is the magnification? b. The object is 1 meter to the left of the lens. Where is the image located (that is, what is the image distance q, including sign - express in millimeters)? Is the image real or virtual? What is the magnification? c. The object is 20 mm to the left of the lens. Where is the image located (that is, what is the image distance q, including sign - express in millimeters)? Is the image real or virtual? What is the magnification?arrow_forwardYou need to record an image on a flat array of CCDs (charge coupled devices—basically a detector). You have two convex lenses mounted in a tube to which you will also attach the CCD plane. The first lens has a focal length of 15 mm and is positioned 25 mm from the sample to be imaged. The second lens, with a focal length of 10 mm, is closer to the CCDs and is 50mm from the first lens. How far away from the second lens will you mount the CCD plane? You must solve this problem using a good diagram and geometry. It is not permissible to use the lens/mirror equation, except to check your answer. Please show all work, and do not copy from chegg.arrow_forward
- University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax