24) A transparent photographic slide is placed in front of a converging lens with a focal length of 2.60 cm The lens forms an image of the slide 14.0 cm from the lens. How far is the lens from the slide if the image is a) real, and b) virtual?
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A: The focal length of eyepiece is fe=23.4 cm. The focal length of objective is fo=0.190 cm. The…
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A: Focal length is, 1f=1u+1v Here, f is the focal length, u is the object distance, and v is the image…
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A: Here is the step-by-step explanationTo solve these problems, we'll use the lens formula and the…
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Q: 4. Two diverging lenses, each with focal length of -30 cm, are placed 20 cm apart. If an object is…
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Q: 3. For a converging lens the object is 10 cm from the lens and the image is 24 cm from the lens on…
A: See below
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Q: A point source of light is placed a distance of 3f from a diverging lens, where f is the focal…
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Q: 37 – 38. A 14.5 cm high object is placed 50.0 cm in front of a concave mirror with radius of…
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A: Given:Focal length of a converging lens, f = 10 cmImage distance = 15 cm behind the lens
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A: object distance=25cm focal length= 55cm
Q: 10:07 AM Fri Nov 25 bconline.broward.edu A coin is 12 cm in front of a converging lens with focal…
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Q: 15) A thin converging lens is found to form an image of a distant building 28.9 cm from the lens. If…
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Q: 15-Two converging lenses have the same focal length of 5.00 cm. They have a common principal axis…
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- VARIANT 23 Suppose an object such as a book page is held 15 cm from a concave lens of focal length - 10.0 cm. Such a lens could be used in eyeglasses to correct pronounced nearsightedness. (a) Using the thin lens equations to calculate the location of the image. (b) What magnification is produced? (c) Use ray tracing to get an approximate location for the image.4.5-1) The print in many books averages 4.20 mm in height. How high in mm is the image of the print on the retina when the book is held 34.0 cm from the eye? (Assume the lens-to-retina distance is 2.00 cm. Include the sign of the value in your answer.) _______mm15. An object is placed 70.0 cm in front of a lens whose focal length is +23.0 cm. The image that is formed of this object will be: a) inverted and 2.04 times the size of the object. b) inverted and 0.489 times the size of the object. c) erect and 2.04 times the size of the object. d) erect and has the same size as the object. e) erect and 0.489 times the size of the object.
- Describe the appearance of the object through the convex lens. Specify whether the image was larger or smaller than the object and whether it was right side up or upside down. Answer in 2 to 3 sentences6) An object is placed very far in front of a converging lens of focal length 13.2 cm. Find the location of the image, be sure to indicate which side of the lens the image is on.A 1.00-cm-high object is placed 3.95 cm to the left of a converging lens of focal length 8.30 cm. A diverging lens of focal length -16.00 cm is 6.00 cm to the right of the converging lens. Find the position and height of the final image. position height cm cm -Select- -Select- Is the image real or virtual? O real O virtual in front of the second lens behind the second lens Is the image inverted or upright? O upright O inverted 4
- 10. A thin converging lens is found to form an image of a distant building 24 cm from the lens. If an insect is now placed 16 cm from this lens, how far FROM THE INSECT will its image be formed?7) Both lenses of a compound microscope have focal lengths of 1 cm. The barrel length is 26.95 cm. Deteimine the total magnification for an object placed 1.04 cn below the objective,1) A piece of thin spherical shell that has a radius of curvature of 145 cm is silvered on both sides. The concave side of the piece forms a real image 500 cm from the mirror. The piece is then turned around so that its convex side faces the object. The piece is moved so that the image is now 30 cm from the piece on the concave side.
- 16) An object is placed 12.3 cm from a diverging lens of focal length 18.9 cm. What is the lateral magnification of the object?a) Show that an infinitesimal change dn of the refractive index of the material of a thin lens leads to an infinitesimal change df of the focal distance, i.e., show that: df f dn n-na (1) where na is the refractive index of air. 1.530) using a discrete b) Calculate the focal distance of a thin lens for blue light (with n= version of the upper equation if the focal distance for red light (with n = 1.470) is 20.0 cm (na = 1.000).A point source of light is placed a distance of 3f from a converging lens, where f is the focal lengthof the lens. Does this make a real or virtual image?a) real imageb) virtual imagec) no image is producedd) need more information to tell