4. Concept Simulation 26.3 reviews the concepts that play a role in this problem. A converging lens has a focal length of 71.00 cm. A 15.0-cm-tall object is located 133.0 cm in front of this lens. (a) What is the image distance? (b) Is the image real or virtual? (c) What is the image height? Be sure to include the proper algebraic sign. Mirrors and Lenses 2F X 2F Concave mirror Focal length (cm): 80.0 Convex mirror Object distance, x (cm): 1330 Plane mirror Object height (cm): 33.0 Converging lens Image distance, x (cm): 200.8 Diverging lens Image height (cm): -49.8 O00 0 0 Concept Questions Notes Audio Intro

An eyeglass prescription that specifies a power of -1.0 diopters is describing a lens that has a focal length of O a. + 1 meter O b.- 100 cm O C. - 1 meter O d. - 1 cm An object placed 25 cm to the left of a +20 cm focal length lens produces a real image 100 cm to the right of the lens. What is the magnification? O a. - 4 Ob. - 0.25 O C. + 2 O d. - 1

Create a ray diagram for eyeglasses that contain a diverging lens. Assume you are looking at a 2 cm tall object that is 4 cm from the lens. The focal length is 3 cm. What type of vision are they used to correct? Give both names. How do they do this? Explain.

mpt in Progress Concept Simulation 26.3 reviews the concepts that play a role in this problem. A converging lens has a focal length of 74.00 cm. A 10.0- cm-tall object is located 170.0 cm in front of this lens. (a) What is the image distance? (b) Is the image real or virtual? (c) What is the image height? Be sure to include the proper algebraic sign. (a) Number i Units V (b) The image is (c) Number i Units Hint real virtual

B. CONVERGING LENSES: After performing this activity, the students should be able to: Sketch the location of the image in the concave mirror, measure the distance and the height of the image, and describe the object and the image in every case. MATERIALS: Rufer PROCEDURES 2 Construct the image of the following, given the focal length, distance of the object (do) (f) and height of the object (ho) in centimeters. Describe the location of both the object and the image being constructed. Determine the exact distance and the height of the image. identify the case number of each. Complete the table below. NOTE: Arrows that represent the secondary axes should be in red color, arrow that represent the object and the image is in blue color as well as the line that shows the bending of light ray, the rest of the construction is in black color. That is why you will be needing 3 colored ballpen for this activity. Use another sheet of bond paper for your construction. Use accurate maeasure. three…

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Anne's retina is 1.8 cm from the lens. The nearest object she can see clearly without corrective lenses is 2.0 m away. 1. Sketch a ray diagram to show (qualitatively) what happens when she tries to look at something closer than 2.0 m without corrective lenses. 2. What should the focal length of her contact lenses be so that she can see clearly objects as close as 20.0 cm from her eye?

A certain slide projector has a 118-mm-focal-length lens. Hints Follow the problem-solving strategy steps outlined in "Problem-Solving Strategy: Lenses" in Section 2.4 Thin Lenses. Two additional hints: (1) you are given the focal length and object distance-distance to slide-here; what equation relates these to the image distance? (2) Remember the linear magnification formula. a. To project the image of a slide onto a screen, does this lens need to form a real image or a virtual image? not enough information given virtual image real image b. If a slide is placed 123 mm from the lens, how far from the lens should the screen be placed for a sharp image? mm away from lens. c. If the size of the slide is 36.0 (width) by 24.0 (height) mm, what are the dimensions of the image? Width = mm; Height = mm The film should be positioned at the location of the image to record the image.