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Concept explainers
How the image of wine glass is formed on tablecloth when filled with white wine, filled with water and when it is empty?
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Answer to Problem 1CQ
The wine glass image distance will vary depending on the liquid present in the glass as the refractive index of each varies.
Explanation of Solution
The incident light is first refracted when it travel from air to glass then it gets refracted when it travel from glass to wine then it is refracted from wine to glass and finally from glass to air. This whole process produces image of wine glass at certain distance.
If the wine glass is filled with water, the refraction angle of the light changes due the different refractive index value of water when compared to wine. Thus, the image of wine glass is formed at a different location.
If the wine glass is empty it means the wine glass is filled with air and still the wine glass image will be formed on the tablecloth but in a different location as the refractive index of air different from water and wine.
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Chapter 25 Solutions
College Physics (10th Edition)
- The end of a solid glass rod of refractive index 1.50 is polished to have the shape of a hemispherical surface of radius 1.0 cm. A small object is placed in air (refractive index 1.00) on the axis 5.0 cm to the left of the vertex. Determine the position of the image.arrow_forwardA lamp of height S cm is placed 40 cm in front of a converging lens of focal length 20 cm. There is a plane mirror 15 cm behind the lens. Where would you find the image when you look in the mirror?arrow_forwardAn object viewed with the naked eye subtends a 2° angle. If you view the object through a 10 x magnifying glass, what angle is subtended by the image formed on your retina?arrow_forward
- An object is located in water 30 cm from the vertex of a convex surface made of Plexiglas with a radius of curvature of 80 cm. Where does the image form by refraction and what is its magnification? nwater=4/3 and nPlexiglas=1.65.arrow_forwardCan you project a virtual image onto a screen?arrow_forwardA light ray entering an optical fiber surrounded by air is first refracted and then reflected as shown below. Show that if the fiber is made from crown glass, any incident ray will be totally internally reflected.arrow_forward
- A virtual image is always formed by a(n) ___ lens. (7.4)arrow_forwardAu object of height 3.0 cm is placed at 25 cm in front of a diverging lens of focal length 20 cm. Behind the diverging lens, there is a converging lens of focal length 20 cm. The distance between the lenses is 5.0 cm. Fluid the location and size of the final image.arrow_forwardParallel rays from a faraway source strike a converging lens of focal length 20 cm at an angle of 15 degrees with the horizontal direction. Find the vertical position of the real image observed on a screen in the focal plane.arrow_forward
- Which is true of a virtual image? (7.4) (a) It is always formed by a convex lens. (b) It can be formed on a screen. (c) It is formed on the object side of a lens. (d) It cannot be formed by a concave lens.arrow_forwardFor a normal, relaxed eye, a magnifying glass produces an angular magnification of 4.0. What is the largest magnification possible with this magnifying glass?arrow_forwardCan you photograph a virtual image?arrow_forward
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