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 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.
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Q: Problem 98. A frame of the film in a certain camera is 3 cm by 3 cm and the focal length of the lens…
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A: Lens formula is given by 1f=1u+1v
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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: A converging lens has a focal length of 15 cm. An object is located 40 cm from the lens. (a) What…
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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: You wish to project the image of a slide on a screen 9.00 m from the lens of a slide projector. (a)…
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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 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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- How far from a 59.0- mm -focal-length lens must an object be placed if its image is to be magnified 3.50× and be virtual?A camera with a 46.5 mm focal length lens is being used to photograph a person standing 3.50 m away. (a) How far from the lens must the film be (in cm)? cm (b) If the film is 34.5 mm high, what fraction of a 1.70 m tall person will fit on it as an image? hperson fit/ hperson total =A camera that has a 50.0 mm focal length lens is being used to photograph a person standing 3.25 m away. How far, in centimeters, must the film be from the lens?
- A 2.5 cm-tall object stands in front of a converging lens. It is desired that a virtual image 2.6 times larger than the object be formed by the lens. How far from the lens (in cm) must the object be placed to accomplish this task, if the final image is located 13 cm from the lens? cm?A slide projector has a converging lens whose focal length is 128.00 mm. (a) How far (in meters) from the lens must the screen be located if a slide is placed 129.44 mm from the lens? If the slide measures 24.0 mm (width) x 36.0 mm (height), what are the magnitudes of the (b) width (in mm) and (c) height (in mm) of its image? (a) Number i Units (b) Number i Units (c) Number i UnitsAn amateur astronomer decides to build a telescope from two lenses. One of the lenses has a focal length of 10.0 cm, and the other has a focal length of 1.4 cm. (a) Which lens should be the objective, for maximum magnification? (b) What will be the magnification of the telescope? (c) How long will the telescope tube be if the telescope is focused on a flower that is 1.00 meter away? (Keep four significant figures for this.)