A stamp collector wants to magnify images by 10(X) when the object is 5.5 cm away. What focal length is needed?
Q: The distance from the front to the back of your eye is approximately 1.90 cm. If you can see a clear…
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Q: The magnification produced by a converging lens is found to be 2.4 for an object placed 22 cm from…
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Q: An object is 20 cm in front of a diverging lens that has a focal length of -9.4 cm. How far in front…
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Q: An object is placed 10.3cm in front of a converging lens with a focal length of 17.5cm. Use…
A: f = 17.5 cm (focal length of converging lens) u = -10.3 cm (distance of the object from the lens)
Q: plano-convex lens, the radius of curvature of convex surface is 10 cm and the focal length of the…
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Q: Photographs at a scale of S are required to cover an area X-mi square. The camera has a focal length…
A: Photographs at a scale of S are required to cover an area X-mi square. The camera has a focal length…
Q: 5) A stamp collector wants to magnify images by 8(X) when the object is 6.3 cm away. What focal…
A: Using the formula for magnification and lens formula one cm solve this problem.
Q: A pepper seed is placed in front of a lens.The lateral magnificationof the seed is +0.300.The…
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Q: What is the focal length of a magnifying glass that produces a magnification of 2.67 when held 5.71…
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Q: is measured to be 31 cm. The actual focal length of this lens is 28 cm. What is the percent error of…
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Q: An object is placed 9.6cm in front of a converging lens with a focal length of 16.4cm. Use…
A: The lens formula is, 1v-1u=1f Where, v is the image distance…
Q: correct their vision so that they can see objects that are as close as 10 cm to their eye, what…
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Q: An object is placed 10.1cm in front of a converging lens with a focal length of 18.2cm. Use…
A: object distance = u = 10.1 cm focal length = f = 18.2 cm image distance = v = ?
Q: How many centimeters (cm) away would you need to place an object to make its image appear 10.21 cm…
A: Image distance v = 10.21 cm Focal length f = 7.28 cm We need to find object distance.
Q: A stamp collector wants to magnify an image by 4.0 when the stamp is 3.5 cm from the lens. What…
A: Given Information:- Magnification of the image is m=4.0 Distance of the stamp from the lens is…
Q: The strength of a lens is listed as -2.5 diopters. What is its focal length and what type of lens is…
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Q: You want to project an image onto a wall. The object (a well-illuminated thimble) is 30cm from the…
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Q: The near-point distance of a given human eye is N = 25 cm. We treat the eye as if it were a single…
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Q: A 1.5-cm object is placed 0.50 m to the left of a diverging lens with a focal length of 0.20 m. A…
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Q: A man with a near point of 45.9 cm is using a magnifying glass of focal length 9.3 cm sees an image…
A: Focal length of magnifying glass f= 9.3 cm Normal near point of eye is (D)= 25cm
Q: You produce an image of the Sun on a screen, using a thin lens whose focal length is 15.0 cm. What…
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Q: An object is placed 12cm from a converging lens and the image appears at 24cm on the opposite side…
A: Given: The distance of the object from the lens is 12 cm. The distance of the image from the lens is…
Q: a far sighted person has a near point of 98 cm. to correct their vision so they can see objects…
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Q: A person needs a lens of power 5.5 diopters for correcting his distant vision. For correcting his…
A: a) The expression for find focal length of the lens for correcting distant vision is f=1P Insert…
Q: An object is placed 10cm in front of a converging lens with focal length 20cm. A) Where is the image…
A: Lens formula 1f=1v-1u Magnification of a lens is defined as the ratio of the height of an image to…
Q: A prescription for reading glasses has a power of P = 2.24 D. What is the focal length of the…
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Q: A prescription for reading glasses has a power of P = 2.7 D. What is the focal %3D length of the…
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Q: A magnifying glass gives an angular magnification of 8 for a person with a near-point distance of sN…
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Q: A lens that is constructed from a glass, whose index of refraction is 3, has a focal length of 22…
A: Given data: Index of refraction of first lens (μ1) = 3 Focal length of first lens (f1) = 22 cm Focal…
Q: You have three lenses stuck together. What is the focal length of the combination? f1-27 cm, f2-16…
A: Given data The focal length of the first lens is given as f1 = 27 cm. The focal length of the…
Q: How far from the lens must the film in a camera be, if the lens has a 26.7mm focal length and is…
A: Lens formula is given by 1f=1u+1v
Q: What is the focal length of the corrective lenses
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Q: A certain telescope has an objective of focal length 1 500 cm. If the Moon is used as an object, a…
A: Since the moon can be considered an infinite object, the image distance is
Q: A doctor examines a mole with a 15.7 cm focal length magnifying glass held 11.2 cm from the mole.…
A: Focal length of the lens of the magnifying glass f=15.7 cm The object distance u=11.2 cm The lens…
Q: An object, 4 cm high, is 10 cm in front of a thin convex lens of focal length +12 cm. Determine the…
A: construction of the given apparatus is given as follows:
Q: low far from a lens having a focal length of +150 mm must the object be placed if it is to form a…
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Q: An object is placed 8.3cm in front of a converging lens with a focal length of 18.8cm. Use…
A: Object distance (d) = 8.3 cm Focal length of converging lens (f) = 18.8 cm
Q: A student lab group wants to project a 32.2 cm tall image of a candle on a square card that is 3.1 m…
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Q: A 35 mm camera has a picture size of 24 mm by36mm. Itisusedtotakeapictureofa person 181 cm tall so…
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Q: A photographer uses his camera, whose lens has a 60 mmmm focal length, to focus on an object 5.0 mm…
A: Write the given values with the suitable variables. f=60 mm=0.06 mu1=5 mu2=40 cm=0.4 m Here, f, u1,…
Q: A toy car is placed 12.46 cm away from a lens that has a focal length of 4.03 cm. By how much is the…
A: Given, Focal length of lens = 4.03 cm Toy car placed at distance = 12.46 cm
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