How far from a 50.0-mm-focal-length lens must an object be placed if its image is to be magnified 3.50× and be virtual?
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Q: A doctor examines a mole with a 16.1 cm focal length magnifying glass held 11.4 cm from the mole.…
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Q: A doctor examines a mole with a 17.3 cm focal length magnifying glass held 11.6 cm from the mole.…
A: Given, Focal length,f=17.3cmobject distance,u=-11.6cm (a) We have the expression of the lens…
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Q: Camera lenses are described in terms of their focal length. A 50 mm lens has a focal length of 50…
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Q: Lenses of focal lengths +60 mm & +20.8 mm are held 93.9 mm apart to make a makeshift microscope. A…
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Q: A camera with a 49.0 mm focal length lens is being used to photograph a person standing 4.25 m away.…
A: The focal length of the lens is .The distance between the lens and the persons is The size of the…
Q: With your camera, you are trying to take a photograph of a bird that is flying far away from you. In…
A: The magnification of an image produced by a lens is given by the ratio of the focal length of the…
Q: A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal…
A: The focal length of the objective lens is The focal length of the eyepiece is The length of the…
Q: An object 2.05 cm high is placed 40.3 cm to the left of a converging lens having a focal length of…
A:
Q: A digital camera whose lens has a focal length of 8.0 mm is used to take a picture of an object 30…
A: Given: The object distance is 30 cm. The focal length is 8.0 mm. The height of object is 2.4 cm.
Q: A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal…
A: The focal length of the objective lens is fo= 16.22 mm.The focal length of the eyepiece is fe= 9.64…
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: Unless otherwise stated, the lens-to-retina distance is 2.00 cm. A 7.5 X binocular produces an…
A: Magnifying power of binocular is given by: M = fo/ue given data suggests : fo = 75 cm and M = 7.5…
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 is reading a newspaper held 40cm from their eyes. The print is 1.5mm high. Assuming that…
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Q: A converging lens has focal length 20 cm. If the object distance is 5 cm. Find out the magnification…
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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
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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…
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Q: An object is located 31.6 cm to the left of a converging lens whose focal length is 49.9 cm. (a)…
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Q: A stamp collector uses a lens with 7.2-cm focal length as a simple magnifier. The virtual image is…
A: Focal length of lens f=7.2 cm, The virtual image at the near point v=25 cm
Q: What component powers are necessary in a two-element lens system if one requires a 20-cm effective…
A: Front focal length is the length from front focal point of the system to the vertex of the first…
Q: You are designing contact lenses for someone whose near point is 65 cm. What focal length lens…
A: Consider the near point, that is the distance of the image be v, the object’s distance be u, and the…
Q: FA FALA doA OB (=1₂₁) B FB FB + 18 -+-d₁A- 9. Two converging lesnses, A and B, have focal lengths of…
A: Object distance: dOA = 25 cm in front of lens A Focal length of lens A: fA = 15 cm Focal length of…
Q: An enlarging camera has a lens of +12.5-cm focal length. The object is a negative that is 35 mm…
A: Given: f = focal length of the lens = 12.5 cm ho = height of object = 35 mm hi = height of image =…
Q: You are designing contact lenses for someone whose near point is 75 cm. What focal length lens…
A: Using lens formula,
Q: A small Keplerian telescope has an objective with a 0.98 m focal length. Its eyepiece is a 2.88 cm…
A: Given: The objective focal length of the telescope fo = 0.98 m. The eyepiece focal length of the…
Q: A camera is equipped with a lens with a focal length of 40.0 cm. When an object 2.50 m away is being…
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Q: A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal…
A: Given: fo=16.22 mm =16.22 *10-3 mfe= 9.92 mm = 9.92*10-3 ml = 34 cm =34*10-2 mθi=1.43 m rad =…
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 camera is equipped with a lens with a focal length of 39 cm. When an object 2.2 m (220 cm) away is…
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Q: A compound microscope consisting of a shinny lens with a focal length of 10 mm and an eyepiece with…
A: Solution:- 1) The magnification produced by a compound microscope, is given by m = - (L/f0)*(D/fe)…
Q: How far from a 59.0- mm -focal-length lens must an object be placed if its image is to be magnified…
A:
Q: A camera with a 46.5 mm focal length lens is being used to photograph a person standing 3.50 m away.…
A: Focal length of lens, f = 46.5 mm =46.5*10-3 m object distance, u = 3.5 m a) Using the lens formula…
Q: A camera that has a 50.0 mm focal length lens is being used to photograph a person standing 3.25 m…
A: The given values are,
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