w and explain all work in a neat and organized way to receive credit and you mus
ID: 1786013 • Letter: W
Question
w and explain all work in a neat and organized way to receive credit and you must turn in this sheet. Please show each step in calculations 1. (a) What is the difference between a converging (convex) and diverging (concave) lens What is the sign of the focal length for each type of lens? (c) If o is positive (object is to the left of the lens) and i is positive (image is to the right of the lens), what type of image is formed? d) If o is positive (object is to the left of the lens) and i is negative (image is to the left of the lens), what type of image is formed? (8 pts) ? (b) 2. A lens produces an image on a screen that is twice as large as the object. If the image is located 13.7 (c) What type of lens was used in this case?. (7 pts) 3. cm from the lens. (a) Determine the object distance. (b) Find the focal length of the lens. An object is 25.0 cm to the left of the convex lens which is 57.0 cm from a concave lens as shown below. The focal lengths of the convex and concave lenses a respectively. (a) Use the thin lens equation to determine the location of the image made by the convex lens.(b) Treat the image made by the convex lens as the object of the concave lens and determine the location of the final image. Characterize the final image completely. (Reduced or enlarged, real or virtual, inverted or upright). (15 pts) 4. A student set up the magnetic optical bench as shown. The locations of the component holders for the crossed arrow target (CAT), and slens (L), are as follows, respectively: 238 mm, 567 mm The offsets for the CAT and the S are 4.00 mm, and the offset for lens, L is 6.00 mm. The inverted image formed on the screen is 0.850 times the size of the object. (a) What is the position of the CAT on the optical bench? (b) What is the position of the L on the optical bench? (c) Calculate the position of the component holder of the screen? (d) What is the position of theS on the optical bench? (e) Calculate the object distance from the lens. (f) Calculate the image distance from the lens. (g) Calculate the focal length of the lens. (d) Without changing the CAT and the S location, calculate position where would you place the component holder of the lens to obtain second image? Please show detailed work for all answers (20 pts) CAT L S component holder 0.00 m 1. 00 m 5. During the experiment student recorded that distance between object and the screen, on which image is observed,is 674 mm. Using the thin lens equation, - 1+ 3calculate the focal length of the lens. The value for magnification is-2.15. (15 pts)Explanation / Answer
1)
(a)
Convex lenses are thicker at the middle. Concave lenses are thinner at the middle.
Rays of light that pass through the lens are brought closer together (they converge) in converging lens. Rays of light that pass through the lens are spread out (they diverge) in diverging lens.
When parallel rays of light pass through a convex lens, the refracted rays converge at the focal point. When parallel rays of light pass through a concave lens the refracted rays diverge so that they appear to come from one point called the principal focus.
The image formed in convex lens is magnified. The image formed in concave lens is diminished.
(b)
Convex lens: positive
Concave lens: negative
(c)
Real image.
(d)
Virtual image.
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