A thin plastic lens with index of refraction n = 1.71 has radii of curvature given by R, = -10.0 cm and R, = 50.0 cm. %3D Determine the focal length in cm of the lens. cm
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- Question in the attachments8. A nearsighted man uses his ideally prescribed eyeglasses that have a refractive power of -2.50 diopters. He would like a prescription for contact lenses. What is the correct contact lens prescription if he normally wears his eyeglasses a distance of 3.0 cm from his eyes? diopters oofCh. 35
- Ch24,MC1519) A doctor examines a mole with a 15-cm focal length magnifying glass held 12.5 cm from the mole. Randomized Variables do = 12.5 cm a) What is the image distance for this configuration in meters? b) What is its magnification? c) How big is the image of a 5.00 mm diameter mole in millimeters?e) erect and 0.489 times the A nearsighted man uses his ideally prescribed eyeglasses that have a refractive power of -1.95 diopters. He would like a prescription for contact lenses. What is the correct contact lens prescription if he normally wears his eyeglasses a distance of 1.32 cm from his eyes? a) -1.90 diopters b) -2.10 diopters c) 1.90 diopters 16. d) -2.00 diopters e) 2.00 diopters n00 mirror as shown
- In sports photography, one often needs a long telephoto lens with a large aperture. As a designer, you will work with engineers to design some new lens.“ (i) Suppose you want to have an 500mm lens with aperture f/4. Calculate the required iris diameter. Round your answer to the nearest integer and state its unit. “ |(ii) Suppose you want to have a 700mm lens with a surface area of 12271.8463mm². Calculate the f-number. Correct your answer to 2_decimal places.Problem 12: A student wears eyeglasses of power P = -3.75 diopter to correct nearsightedness. The glasses are designed to be worn d = 1.3 cm in front of the eye. Part (a) Input an expression for the far point the student can see without correction, do. Part (b) Numerically, what is the distance in meters?Photographs at a scale of S are required to cover an area X - mi square. The camera has a focal length and focal plane dimensions of 9 * 9in . If endlap is 60% and sidelap 30\% how many photos will be required to cover the area for the data given below? ▾ Part A S = 1/6500 ; X = 8 f = 152.4mn Express your answer as an integer.