COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 24, Problem 65QAP
To determine
The type, location and height of the image
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If a lens is immersed in water, its focallength changes, as discussed in Conceptual Example 26-17.(a) If a spherical mirror is immersed in water, does its focal lengthincrease, decrease, or stay the same? (b) Choose the best explanation from among the following:I. The focal length will increase because the water will causemore bending of light.II. Water will refract the light. This, combined with the reflection due to the mirror, will result in a decreased focal length.III. The focal length stays the same because it depends on thefact that the angle of incidence is equal to the angle of reflection for a mirror. This is unaffected by the presence of thewater
An object 3.0mm high is placed 16cm from a convex mirror of radius of curvature 16cm. (a) show by ray tracing that the image is virtual, and estimate the image distance. (b) show the (negative) image distance can be computed from Eq.23-2 using a focal length of -8.0cm (c) Compute the image size, using Eq. 23-3.
Suppose you would like to start a fire by focusing sunlight onto apiece of paper. In Conceptual Example 26-4 we saw that a concavemirror would be better than a convex mirror for this purpose. At whatdistance from the mirror should the paper be held for best results?
Chapter 24 Solutions
COLLEGE PHYSICS
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Can an image be larger than the object even though its magnification is negative? Explain.arrow_forwardDuring LASIK eye surgery (laser-assisted in situ keratomileusis), the shape of the cornea is modified by vaporizing some of its material. If the surgery is performed to correct for nearsightedness, how does the cornea need to be reshaped?arrow_forwardWhat is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s face is 12.0 cm away? Explicitly show how you follow the steps in the ProblemSolving Strategy for Mirrors.arrow_forward
- What is the case when the angle of refraction is smaller than the angle of incidence? (7.2) (a) The critical angle is exceeded. (b) The first medium is less dense. (c) The second medium has a smaller index of refraction. (d) The speed of light is greater in the second medium.arrow_forwardCan a case 1 image be larger than the object even though its magnification is always negative? Explain.arrow_forwardA cataract-impaired lens in an eye may be surgically removed and replaced by a manufactured lens. The focal length required for the new lens is determined by the lens-lo-retina distance, which is measured by a sonar-like device, and by the requirement that the implant provide for correct distance vision. (a) If the distance from lens to retina is 22.4 mm, calculate the power of the implanted lens in diopters. (b) Since there is no accommodation and the implant allows for correct distance vision, a corrective lens for close work or reading must be used. Assume a reading distance of 33.0 cm, and calculate the power of the lens in the reading glasses.arrow_forward
- A person spearfishing from a boat sees a fish located 3 m from the boat at an apparent depth of 1m. To spear the fish, should the person aim (a) at, (b) above, or (c) below the image of the fish?arrow_forwardYou are using a standard microscope with a 0.10NA4X objective and switch to a 0.65NA40X objective. What are the acceptance angles for each? Compare and comment on the values. Which would you use first to locate the target area on of your specimen? (See Figure 26.17.)arrow_forwardA beam of light always spreads out. Why can a beam not be created with parallel rays to prevent spreading? Why can lenses, mirrors, or apertures not be used to correct the spreading?arrow_forward
- Will the focal length of a lens change when it is submerged in water? Explain.arrow_forwardThe accommodation limits for Nearsighted Nicks eyes are 18.0 cm and 80.0 cm. When he wears his glasses, he is able to see faraway objects clearly. At what minimum distance is he able to see objects clearly?arrow_forwardIf the cornea is to be reshaped (this can be done surgically or with contact lenses) to correct myopia, should its curvature be made greater or smaller? Explain. Also explain how hyperopia can be corrected.arrow_forward
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Convex and Concave Lenses; Author: Manocha Academy;https://www.youtube.com/watch?v=CJ6aB5ULqa0;License: Standard YouTube License, CC-BY