An arrow, 8 cm long, is located 45 cm from a lens that has a focal length f = 15 cm, and a concave mirror with focal length f₂ = 15 cm is placed at x = +30 cm as shown in the figure below. a) Find the position of Object the final image. b) Is the final image real or virtual? Explain. O x = +75 cm x = +60 cm x = +45 cm O x = +22,5 cm x = +7,5 cm O x = +15 cm Futt -30 -15 0 +15 +30 x=0 Diğer: -45 x=+30 +60 +75
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- The figure shows an object and its image formed by a thin lens. Assume that d1 = 0.781 m, d2 = 0.604 m, and h = 7.50E-2 m. What is the image height (in m; answer sign and magnitude)?A 1.0 cm tall light bulb is placed 50 cm from a convex lens that has a focal distance of 40 cm. Which of the following statements is true of the bulb's image? a. The image is virtual, the distance to the image is 12.5 cm and the height of the image is 0.25 cm tall. b. The image is virtual, the image distance is -200 cm and the height of the image is 4.0 cm tall. c. The image is real, the distance to the image is 22.2 cm and the height of the image is 0.44 cm tall. d. The image is real, the distance to the image is 200 cm and the height of the image is 4.0 cm tall. e. The image is virtual, the distance to the image is 22.2 cm and the height of the image is 0.44 cm tall.An object 1.40 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm high. What is the magnification? magnification: Where is the image? image distance: cm Find the magnitude of the radius of curvature of the convex mirror formed by the cornea. magnitude of radius of curvature: cm Note: This technique is used by optometrists to measure the curvature of the cornea for contact lens fitting. The instrument used is called a keratometer, or curve measurer.
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