A screen is placed 90 cm from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20 cm. Determine the focal length of the lens.

Q: A converging lens causes an object 80.4 cm from the lens to create an image 78.6 cm from the lens on…

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Q: For a converging lens, the object lies 14 cm from the lens and the image is 37 cm from the lens on…

A: Given data: The object distance is, u=-14 cm The image distance is, v=37 cm

Q: Images formed by thin lenses. A contact lens is made of plastic with an index of refraction of 1.50.…

A: According to lensmaker’s equation, Here, f, n, R1 and R2 represent the focal length of the lens,…

Q: A converging lens has a focal length of 4.20 cm. It forms an inverted image with an image distance…

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Q: A convex (converging) lens produces a real, inverted image of an object that is magnified 2.30 times…

A: It is given that, the image produced by a convex lens is real and inverted. Let us say that the…

Q: A 2.0-cm object is placed 30.0 cm from a converging lens that has a focal length of 10.0 cm as shown…

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Q: A convex lens with focal length 13.6 cm and a radius of 10.9 cm is used to image an object located…

A: given that for convex lens    f= 13.6 cm             radius  R1   =   R2   =  10.9 cm   object…

Q: An object is 25.0 cm from a concave mirror of focal length 15.0 cm. Find the magnification.

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Q: When an object 1.15 CM tall is placed 12 CM from lens the lens produces an upright image of the…

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Q: How far from the lens is the object located?

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Q: A thin lens shown has a focal length with a magnitude of 5.33 cm. If an object is placed 1.54 cm to…

A: Given,1v=1f+1u Focal length,f=5.33cmObject Distance,u=-1.54cm We have to calculate the image…

Q: The angular magnification of a microscope is 440× when the final image is at infinity. The optical…

A: Compound microscopes are used to get magnified images of tiny objects. It consists of two convex…

Q: You have a lens whose focal length is -6.41 cm. You place an object on the axis of the lens at a…

A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…

Q: What is the lateral magnification of this lens combination?

A: For the objective lens, the lens equation is given by

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: For a converging lens, the object lies 15 cm from the lens and the image is 24 cm from the lens on…

A: Given data-       object distance from the lens (u) = -15 cm      image distance from the lens (v) =…

Q: What is the focal length of the mirror?

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Q: A negative lens with a focal length of -15 cm is 25 cm from a positive lens with a focal length of…

A: Given,  u = -15-25 = -40 cm f = 20 cm

Q: On one side of a diverging lens of focal length 27.3 cm, you position an object of height 3.24 cm…

A: The magnification of the lens is given by The thin lens formula is given by

Q: C F2 F1 C Cag g

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Q: In a darkened room, a burning candle is placed 1.63 m from white wall. A lens is placed between…

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Q: A converging lens has a focal length of 8.00 cm. What is the nature of the image formed when the…

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Q: For a converging lens, the object lies 13 cm from the lens and the image is 21 cm from the lens on…

A: Given data:  A converging lens Object distance from lens = 13 cm Image distance from the lens = 21…

Q: FA FA x (cm) 40 -20 -15 -10 10 15 20 25 30 35 A thin convex lens A of focal length fa = 10 cm is…

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Q: When two lenses are used in combination, the first one forms an image that then serves as the object…

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Q: A converging lens causes an object 89.3 cm from the lens to create an image 78.6 cm from the lens on…

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Q: a converging lens is in front of a concave spherical mirror of radius R = 8.90 cm. The focal points…

A: See below

Q: For a converging lens, the object lies 15 cm from the lens and the image is 34 cm from the lens on…

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Q: The objective lens of a microscope has a focal length of f1 = 5 cm and 40 cm from the eyepiece. When…

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Q: An 8.0-meter radius convex rearview mirror is used in automobiles. What is the focal length of this…

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Q: A doctor is examining a mole using a magnifying glass of focal length 15 cm.  The lens is held 13.5…

A: Given: The focal length of the lens is 15 cm. The distance of the mole from the lens is 13.5 cm.

Q: A convex lens has a focal length of 13 cm. A candle with a height of 7 cm is 7 cm away from the…

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Q: Using a single optic with a positive focal length, an image is created. As a result, which of the…

A: Given: focal length of a optic is positive

Q: You have a lens whose focal length is 12.9 cm. You place an object on the axis of the lens at a…

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Q: an object is placed 19.0 cm to the left of a lenss of the focal length 12.0cm. 27.0 cm to the right…

A: Given data: The focal length of the lens f=12.0 cm The distance of the object from the left of the…

Q: An object is 30.0 cm from a spherical mirror, along the mirror's central axis.The mirror produces an…

A: The object distance from the spherical mirror is given as, u=-30 cm. The absolute value of lateral…

Q: A glass lens (?=1.60) has a focal length of ?=−32.7 cm and a plano‑concave shape. Calculate the…

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Q: An image of the moon is focused onto a screen using a converging lens of focal length f= 35.3 cm.…

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Q: an object is located 6.10 cm on front of a mirror. the virtual image is located 4.60 cm away from…

A: givenThe object distance do​=−6.10cm  (object is always placed in front of mirror that is in left of…

Q: Two converging lenses create an image 1.50 m away from the object. The first lens is placed 30 cm in…

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Q: Two lenses are separated by 50 cm. Lens 1 is convex and has a radius of curvature of magnitude 30…

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