A person's near point is 55 cm. What is the minimum power lens that would enable the person to see newsprint at 25 cm? O a. +0.022 diopters O b. +2.18 diopters OC. +4.58 diopters d. +5.82 diopters
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A: Recall for lense m=magnification=v/u
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A: Given: distance of object, u = - 36 cm magnification, m = - 5 real image
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Q: - Fill in the missing values in the following table. f a. 6.0 cm b. 2.9 cm P Converging lens ? ? 9…
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Q: 5. A diverging lens has a focal length that has a magnitude of 32.0 cm. An object is placed 23.5 cm…
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Q: A lens with a focal length of 4.00 cm is placed 3.00 cm from an object. -The lens is a ____lens.…
A: given: focal length f : 4 cm object distance u : 3 cm
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Q: A convex (converging) lens produces a real, inverted image of an object that is magnified 2.20 times…
A: Answer 32.3125 cm Solution
Q: 3. A prescription for a corrective lens calls for +3.50 diopters. The lens maker grinds the lens…
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Q: 5) An object is 55 cm from a converging lens and a real image is formed on the other side of the…
A: Position of object u=-55cm position of image v=90cm
Q: 7. A farsighted man uses eyeglasses with a refractive power of 2.00 diopters. Wearing the glasses…
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Q: or
A: Distance of far point from eye = -80cm
Q: Part A - What is the value of the focal length, f, of the lens? f = Submit - ΑΣΦ Request Answer ? cm…
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Q: THe near point of a person's eye is 60.6 cm. To see objects clearly at a distance of 23.0 cm, what…
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Q: QUESTION 5 A teenage with hyperopia has an abnormal near point of 1.0 m. What power of corrective…
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Q: measurement indicates that a patient cannot clearly see any object that lies closer than 60.2 cm to…
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Q: The near point of an eye is 38.0 cm. A corrective lens is to be used to allow this eye to focus…
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Q: QUESTION 10 To view an insect, an entomologist places a converging lens with a focal length of 10 cm…
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Q: A contact lens is made of plastic with an index of refraction of 1.40. The lens has an outer radius…
A: Given data :- Refractive index n = 1.40 R1 = +1.90 cm (outer radius)R2 = +2.42 cm (inner radius)
Q: A person's near point is 55 cm. What is the minimum power lens that would enable the person to see…
A: Distance of object u = -25 cm = -0.25 m Distance of image v = -50 cm = -0.5 m Power of lens P = ?…
Q: 2. A 5 cm high object is 12.0 cm in front of a system of two lenses, with f, = 10.0 cm and f, =…
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- What is the amount of magnification of a refracting telescope whose objective lens has a focal length of 1.0 m and whose eyepiece has a focal length of 25 mm? а. х 8.0 O b.x 40 Ос. х 32 d.x 16 О е.х 244. A convex (converging) lens produces a real, inverted image of an object that is magnified 2.20 times when the object is 37.0 cm from the lens. What is the focal length of the lens? cmA boy with myopia has an abnormal far point of 80.0 cm. What power of corrective lens is needed to accurately adjust his vision? Neglect the distance between the eye and the corrective lens. a. -2.00 D b. -1.25 D C. -1.75 D d. -1.50 D e. -2.25 D
- A convex lens (i.e. with R1 > 0 and R2 < 0 with left and right radii of curvature of magni- tudes 16.5 cm and 18.5 cm has an index of refraction n of 1.55. What is the focal length of the lens? О А. 15.9 сm ОВ. 23.1 ст О С. 30.3 сm O D. 44.8 cm10.A microscope has a 12.0x eyepiece and a 59.0x objective lens 20.0 cm apart. What is the focal length in centimeter of the eyepiece? A. 1.26. B. 2.08. C. 2.45. D. 3.19. E. 3.57
- 2. An object is placed 50.cm in front of a converging lens and then 15.5cm in front of a diverging lens. Both lenses have a focal length of 12.0cm. For both cases, find the image distance.4. Assume selecting two Crown glasses with na = 1.52 and different Abbe numbers (va) to make following 4 lenses with the same focal length (f), but different lens shape factor (s). Which lens has the smallest spherical and chromatic aberrations? A. va = 81.8, s = 2. В. Va B. va = 81.8, s = 1. C. va = 66.8, s = 2. D. va = 66.8, s = 1. %3D %3D %3Dq43 A small object has an angular size of 0.3º. When viewed through a magnifier, it has an angular size of 7º. What is the angular magnification in this case? Enter the numerical part of your answer to one decimal figure.
- Please Provide an explanation for the answer. Thank youAn 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. - 18. 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 oof