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Q: A lens can be used to start a fire by focusing an image of the sun onto a piece of flammable…
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Q: Two converging lenses with focal lengths 12 and 20 cm are placed 8 cm apart. An object is placed 36…
A: Given:- Two converging lenses with focal lengths f1=12 and f2 = 20 cm are placed d = 8 cmapart. An…
Q: What power of a contact lens will allow a person with a near point of 80 cm to read a book that is…
A: Given data: The virtual image is v=-80 cm The object is u=-25 cm
Q: A 2.0-cm -diameter spider is 2.8 m from a wall. Determine the focal length f of a lens that will…
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Q: A camera with a lens of focal length 6.00 cm is used to photograph a painting located 3.00 m from…
A: Solution - The Lens formula describes the relationship between the distance of an image I the…
Q: A diverging lens with focal length If = 18.5 cm produces an image with a magnification of +0.620.…
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Q: A diverging lens with focal length |f = 14.0 cm produces an image with a magnification of +0.650.…
A: Write the given values with the suitable variables.Here, f is the focal length of the diverging lens…
Q: Using the thin lens equations, design a single-lens system with magnification M = -2.
A: To design a single lens system with magnification M = -2, we need to determine the focal length of…
Q: Where is the focal point for a converging lens with object distance of 8 mm and image distance of 7…
A: The lens equation is given by,
Q: The near point of a farsighted person is 65 cm. What power contact lens must he use to correct this…
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Q: 3 Select all diagrams which show a correctly drawn ray for the scenario in the problem statement.
A: Here 3 types of arrangement is possible rest of are for reflection through mirror . Here firstly the…
Q: Your camera's zoom lens has an adjustable focal length ranging from 77 to 191 mm. What is its range…
A: Focal lengths: f1=77mm f2=191mm
Q: A fish appears to be 2.50 m below the surface of a pond when viewed almost directly above by a…
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Q: A diverging lens always makes a reduced image. Could you use such a lens to start a fire by focusing…
A: Lenses are of two types converging and diverging. The light gets refracted through a lens. A…
Q: Choose the correct picture depicting the image formed by a divergent lens. The magnitude of the…
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Q: 34. How far is the image from the lens? 4.5 cm 4 cm 6 cm 8 cm 12 cm 35. The image is: real and…
A: Object distance, u = 18 cmFocal length of diverging lens, f = - 6 cmSign convention:The sign of…
Q: People who do very detailed work close up, such as jewellers, often can see objects clearly at much…
A: Distance=25cm
Q: What are some real world applications of a convex lens? Why might it be useful to use a convex lens?
A: This is a question regarding convex lenses and their applications. A convex lens is a lens that is…
Q: An object is located 21.0 cm to the left of a diverging lens having a focal length f = -34.0 cm. (a)…
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Q: Which of the following is true of all virtual images - including virtual images formed by systems of…
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Q: While you are photographing a dog, it begins to move away.What must you do to keep it in focus?(a)…
A: The expression for the focal length of a lens can be written as: 1f=1u+1v Here, f is the focal…
Q: What should be the object distance from the convex lens (f=15 cm), that makes a virtual image that…
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Q: You view a mountain with a magnifying glass of focal length f = 11 cm. What is the magnification? M…
A: Given focal length f=11 cmleast distance of distinct vision D=25cm=0.25m
Q: An object is placed 40 cm in front of a converging lens that has a 60-cm focal length. Where will…
A: The lens formula, which is used to find the image distance for a lens, is given by:1f = 1v -…
Q: Calculate the final magnification in the following lens configuration u=20 mm f=8 mm Separation =6.5…
A: The objective of the question is to calculate the final magnification in a lens configuration given…
Q: A camera takes a properly exposed photo at f/5.6 and 1/500 s. What shutter speed should be…
A: Given: f-aperture f/5.6 Shutter speed 1/500 s To find: Shutter speed when lens…
Q: What is the magnification of an object 15.0 cm from a 20.0 cm focal length thin spherical lens? O…
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- A converging lens of focal length 4 m produces a magnified image 2.4 times the size of the object. What is the object distance if the image is a) real? m b) virtual? mA diverging lens has a focal length of magnitude 22.2 cm. (a) Locate the images for each of the following object distances. 44.4 cm distance location 22.2 cm distance location 11.1 cm distance location -2.11 x cm in front of the lens ✓ ---Select--- ---Select--- cm cmHow could you very quickly make an approximate measurement of the focal length of a converging lens? Could the same method be applied if you wished to use a diverging lens? Explain.
- * 32. Use ray diagrams to locate the images of the following objects: (a) an object that is 10 cm from a convex lens of +15-cm focal length and (b) an object that is 10 cm from a concave lens of -15-cm focal length. (c) Calculate the image locations for parts (a) and (b) using the thin lens equation. Check for consistency.You need to use a 23- cm -focal-length lens to produce an inverted image one third the height of an object. At what distance from the object should the lens be placed? Express your answer with the appropriate units.Please don't provide handwritten solution.... A diverging lens with f = -37.5 cm is placed 15.0 cm behind a converging lens with f = 21.0 cm .Where will an object at infinity be focused? Determine the image distance from the second lens. Follow the sign conventions.
- The lens equation is 1/f=1/u+1/v Why have you rearranged this equation for u as 1/u = 1/v - 1/f Isn't this rearrangement incorrect? The correct rearrangement for u should be 1/f-1/v = 1/uA person with a normal near point (25 cm) using a compound microscope with objective of focal length 8.0 mm and an eyepiece of focal length 2.5cm can bring an object placed at 9.0mm from the objective in sharp focus. What is the separation between the two lenses? Calculate the magnifying power of the microscope,Calculate the image distance when an object is placed 22 cm away from a diverging lens with focal length -10 cm. (Give answer in centimeters) MacBook Air 吕0 F3 F2 000 F8 F9 F4 F6 F7 $ % & 4 6 7 8 %# 3