A camera has a converging lens with a focal length of 56 mm. If the f-number is 2.8 what is the diameter of the lens (in mm)? a. 10 b. 31 c. 0.50 d. 20 e. 50
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Q: What is the speed of light in the lens of the eye? A) 1.50 x 108m/s B) 2.14 x 108m/s C) 3.00 x…
A: Step 1: Step 2:
Q: - Fill in the missing values in the following table. f a. 6.0 cm b. 2.9 cm P Converging lens ? ? 9…
A: Since you posted several questions, we will solve only first question and for the solutions of other…
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A: Here given a person having farsightedness vision defect. We have to define the reason.
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A: Mirror equation is given by, 1f=1do+1di Here, f is the focal length of the mirror, do is the…
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Q: Q4. A convex lens has a focal length of 10cm. What is the power of the lens? O 5D O 20D O 10D 3D
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Q: The vision defect in which the lens of the eye become too long is called O a. Nearsightedness O b.…
A: The vision defect in which the lens of the eye become too long is called nearsightedness. This…
Q: A young girl with myopia has a far point of 2.0 m. What power of lens is required to correct her…
A: For a myopic eye that far point is given to be d=2 m. Since a myopia eye has a problem in seeing far…
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A: Option c)
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Q: A microscope has a tube length of 11 cm. The objective lens is 3x. What is the focal length of the…
A: In the following problem, given data : Length of the tube, L=11 cm Lateral magnification, m=3
Q: A camera lens used for taking close-up photographs has a focal length of 24.9 mm. The farthest it…
A: focal length (f)=24.9mm farthest placed from the film=33.4mm
Q: Q4. A convex lens has a focal length of 10cm. What is the power of the lens? O 5D O 20D O 10D O 3D
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Q: A lens forms a real image that is 224 cm away from the object and 1 2/3 times its length. A)What…
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Q: A slide projector has a converging lens whose focal length is 105 mm. How far from the lens must the…
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Q: ;. A 2 cm object is 2 cm in front of a two-lens system with focal lengths 4 cm and -4 cm,…
A: For first lens: Object distance, u = 2 cm Focal length, f = 4 cm Image position = ? The image…
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: 2. In a cinema, a picture 2.5 cm wide on the film is projected to an image 3.0m wide on a screen…
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Q: An object is placed 12 cm from a converging lens whose focal length is 4 cm. How far away is the…
A: Given, Converging lens of, Object distance, u=12cm Focal length, f=4cm
Q: or
A: Distance of far point from eye = -80cm
Q: Question: A meniscus lens has an edge thickness of 5 mm and a diameter of 40 mm. If the sag of the…
A: Given, edge thickness is, e = 5mm sag of convex surface is, S1 = 1.2mm sag of other surface is, S2 =…
Q: illuminated object is located to the left of a lens that is thinner in the center than at the edges.…
A: Since lens is thinner in the center so it must be concave lens .
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: Everyone’s vision is compromised underwater, but some can see a bit better than others. Which of the…
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Q: A teenage with hyperopia has an abnormal near point of 1.0 m. What power of corrective lens is…
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Q: What is the magnification of a telescope and eyepiece if the telescope objective has a focal length…
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Q: With a lens, an image is formed as a result of? a. Reflection b. Refraction c. Diffraction
A: With a lens, an image is formed as a result of? a. Reflection b. Refraction c. Diffraction
Q: A convex lens is held over a piece of paper outdoors on a sunny day. When the paper is held 22 cm…
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Q: w9-9 A converging lens has a focal length of 8.00 cm. What is the nature of the image formed when…
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Q: A 5.0-mm focal-length objective lens and 60-mm focal-length eyepiece in a simple microscope are…
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Q: An object is 50 cm to the left of a +20 cm focal length lens. Where does the image form? O a. 20 cm…
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Q: Rank the following people from the most nearsighted to the most farsighted, indicating any ties:A.…
A: The power and focal length of a lens are related as
Q: What is the power of a lens with 16cm focal length? A. 1.50D B. 2.00D C. 2.50D D. 3.00D
A: Given value--- focal length = 16 cm. We have to find--- power of lense ?
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