Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
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Chapter 38, Problem 66PQ
To determine
The type of lens that should be used to start a fire.
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f) The iris of the eye serves two different purposes. First, the iris controls the total amount of light entering the eye so a person can see in varying light levels. Secondly, the iris blocks light from hitting the extreme edges of the crystalline lens. Why might an eye want to block the light hitting the extreme edges of a lens? What is the name for the effect when light does hit the edges of a lens? Can you understand why a person’s vision is blurred when they get their eyes dilated at the doctor?
A virtual image is formed 8cm from a convex mirror with a focal length of 10cm. How far from the mirror is the object that created this image (in cm)?
Total internal reflection can take place only if
A. light goes from low index medium to a hi index medium
B. light goes from hi index medium to a low index medium
C. the refractive indices of the two media are close to the same value
D. the refractive indices of the two media are widely different
w9-9
A converging lens has a focal length of 8.00 cm.
What is the nature of the image formed when the object is placed at a distance of 20.0 cm from the lens?
a. real, inverted, and diminished
b. virtual, upright, and enlarged
c. real, inverted, and enlarged
d. virtual, upright, and diminished
Chapter 38 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 38.1 - Light travels from air into glass. Which sketch in...Ch. 38.2 - Prob. 38.2CECh. 38.3 - Prob. 38.3CECh. 38.6 - Prob. 38.4CECh. 38.7 - Prob. 38.5CECh. 38.9 - Prob. 38.6CECh. 38.9 - Prob. 38.7CECh. 38.10 - Prob. 38.8CECh. 38 - The Sun appears at an angle of 53.0 above the...Ch. 38 - Prob. 2PQ
Ch. 38 - Prob. 3PQCh. 38 - A light ray is incident on an interface between...Ch. 38 - Prob. 5PQCh. 38 - Prob. 6PQCh. 38 - Prob. 7PQCh. 38 - A ray of light enters a liquid from air. If the...Ch. 38 - Prob. 9PQCh. 38 - Figure P38.10 on the next page shows a...Ch. 38 - Prob. 11PQCh. 38 - Prob. 12PQCh. 38 - Prob. 13PQCh. 38 - Prob. 14PQCh. 38 - Prob. 15PQCh. 38 - A fish is 3.25 m below the surface of still water...Ch. 38 - N A fish is 3.25 m below the surface of still...Ch. 38 - A beam of monochromatic light within a fiber optic...Ch. 38 - Prob. 19PQCh. 38 - Prob. 20PQCh. 38 - Consider a light ray that enters a pane of glass...Ch. 38 - Prob. 22PQCh. 38 - Prob. 23PQCh. 38 - Prob. 24PQCh. 38 - Prob. 25PQCh. 38 - Prob. 26PQCh. 38 - Prob. 27PQCh. 38 - Prob. 28PQCh. 38 - The wavelength of light changes when it passes...Ch. 38 - Prob. 30PQCh. 38 - Light is incident on a prism as shown in Figure...Ch. 38 - Prob. 32PQCh. 38 - Prob. 33PQCh. 38 - Prob. 34PQCh. 38 - Prob. 35PQCh. 38 - Prob. 36PQCh. 38 - Prob. 37PQCh. 38 - A Lucite slab (n = 1.485) 5.00 cm in thickness...Ch. 38 - Prob. 39PQCh. 38 - Prob. 40PQCh. 38 - The end of a solid glass rod of refractive index...Ch. 38 - Prob. 42PQCh. 38 - Figure P38.43 shows a concave meniscus lens. If...Ch. 38 - Show that the magnification of a thin lens is...Ch. 38 - Prob. 45PQCh. 38 - Prob. 46PQCh. 38 - Prob. 47PQCh. 38 - The radius of curvature of the left-hand face of a...Ch. 38 - Prob. 49PQCh. 38 - Prob. 50PQCh. 38 - Prob. 51PQCh. 38 - Prob. 52PQCh. 38 - Prob. 53PQCh. 38 - Prob. 54PQCh. 38 - Prob. 55PQCh. 38 - Prob. 56PQCh. 38 - Prob. 57PQCh. 38 - Prob. 58PQCh. 38 - Prob. 59PQCh. 38 - Prob. 60PQCh. 38 - Prob. 61PQCh. 38 - Prob. 62PQCh. 38 - Prob. 63PQCh. 38 - Prob. 64PQCh. 38 - Prob. 65PQCh. 38 - Prob. 66PQCh. 38 - Prob. 67PQCh. 38 - Prob. 68PQCh. 38 - CASE STUDY Susan wears corrective lenses. The...Ch. 38 - A Fill in the missing entries in Table P38.70....Ch. 38 - Prob. 71PQCh. 38 - Prob. 72PQCh. 38 - Prob. 73PQCh. 38 - Prob. 74PQCh. 38 - An object 2.50 cm tall is 15.0 cm in front of a...Ch. 38 - Figure P38.76 shows an object placed a distance...Ch. 38 - Prob. 77PQCh. 38 - Prob. 78PQCh. 38 - Prob. 79PQCh. 38 - CASE STUDY A group of students is given two...Ch. 38 - A group of students is given two converging...Ch. 38 - Prob. 82PQCh. 38 - Two lenses are placed along the x axis, with a...Ch. 38 - Prob. 84PQCh. 38 - Prob. 85PQCh. 38 - Prob. 86PQCh. 38 - Prob. 87PQCh. 38 - Prob. 88PQCh. 38 - Prob. 89PQCh. 38 - Prob. 90PQCh. 38 - Prob. 91PQCh. 38 - Prob. 92PQCh. 38 - Prob. 93PQCh. 38 - Prob. 94PQCh. 38 - Prob. 95PQCh. 38 - Prob. 96PQCh. 38 - Prob. 97PQCh. 38 - A Fermats principle of least time for refraction....Ch. 38 - Prob. 99PQCh. 38 - Prob. 100PQCh. 38 - Prob. 101PQCh. 38 - Prob. 102PQCh. 38 - Prob. 103PQCh. 38 - Prob. 104PQCh. 38 - Curved glassair interfaces like those observed in...Ch. 38 - Prob. 106PQCh. 38 - Prob. 107PQCh. 38 - Prob. 108PQCh. 38 - Prob. 109PQCh. 38 - Prob. 110PQCh. 38 - Prob. 111PQCh. 38 - Prob. 112PQCh. 38 - Prob. 113PQCh. 38 - Prob. 114PQCh. 38 - The magnification of an upright image that is 34.0...Ch. 38 - Prob. 116PQCh. 38 - Prob. 117PQCh. 38 - Prob. 118PQCh. 38 - Prob. 119PQCh. 38 - Prob. 120PQCh. 38 - Prob. 121PQCh. 38 - Prob. 122PQCh. 38 - Prob. 123PQCh. 38 - Prob. 124PQCh. 38 - Prob. 125PQCh. 38 - Prob. 126PQCh. 38 - Light enters a prism of crown glass and refracts...Ch. 38 - Prob. 128PQCh. 38 - An object is placed a distance of 10.0 cm to the...
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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
- A small telescope has a concave mirror with a 2.00-rn radius of curvature for its objective. Its eyepiece is a 4.00 cm-focal length lens. (a) What is the telescope’s angular magnification? (b) What angle is subtended by a 25,000 km-diameter sunspot? (c) What is the angle of its telescopic image?arrow_forwardw9-7 A diverging lens has a focal length of −8.00 cm. What is the nature of the image formed when the object is placed at a distance of 19.1 cm from the lens? a. real, inverted, and enlarged b. real, inverted, and diminished c. virtual, upright, and diminished d. virtual, upright, and enlargedarrow_forwardProblem 5: Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.60 m. When she wears +2.0 D reading glasses, a. What is her near point? b. What is her far point? Normal Lens Thickened to Focus on Near Objects Presbyopia Lens Hardened by age and Unable to Change Shape Presbyopia Corrected Corrected with Eyeglasses or contact lenses Image on the Retina Image Behind the Retina Image on the Retinaarrow_forward
- w9-8 A diverging lens has a focal length of −8.00 cm. What is the nature of the image formed when the object is placed at a distance of 24.2 cm from the lens? a. virtual, upright, and diminished b. real, inverted, and diminished c. virtual, upright, and enlarged d. real, inverted, and enlargedarrow_forwardEveryone’s vision is compromised underwater, but some can see a bit better than others. Which of the following individuals would have the clearest underwater vision?A. A person with vision that requires no correction.B. A person with myopia.C. A person with hyperopia.D. A person with presbyopia.arrow_forwardAn observer attempts to see a rainbow toward the end of a rainstorm when the sun shows through a break in the clouds. Which of the following conditions will not contribute to making the rainbow visible? a. The observer must face the sun with his back to the rain clouds. b. The observer must face the rain clouds with his back to the sun. c. The light from the sun must reflect off the backs of the water droplets in the rain clouds at angles greater than the critical angle for total internal reflection. d. The observer must be sufficiently far from the clouds to be able to see the color separation due to dispersion. e. The index of refraction of any material, including water, must be frequency dependent.arrow_forward
- d) As people age, the crystalline lens hardens (a condition called presbyopia or “old-age” eyes) and can only vary in focal length from 12 to 15.60 cm. Calculate range of vision (the new near point and far point) for this older eye.e) Based on part d) why might an older person hold the newspaper at arm’s length to read it?arrow_forwardThe resolving power of a refracting telescope increases with the diameter of the spherical objective lens. In reality, it is impractical to increase the diameter of the objective lens beyond approximately 1 m. Why? a. The resultant sagging of the mirror will cause spherical aberration. O b. The resulting increase in light scattering from the surface of the objective lens will blur the image. c. If the objective lens is too large, it is difficult to keep it clean. d. The increasing size of the objective lens will cause chromatic aberration to grow worse than spherical aberration. O e. The spherical objective lens should be replaced by a paraboloidal objective lens beyond a 1-m diameter.arrow_forwarda) Explain the converging and diverging actions of lenses with the help of refraction of light through a glass prism and a glass block. Draw diagrams to explain.arrow_forward
- d) As people age, the crystalline lens hardens (a condition called presbyopia or “old-age" eyes) and can only vary in focal length from 12 to 15.60 cm. Calculate range of vision (the new near point and far point) for this older eye. e) Based on part d) why might an older person hold the newspaper at arm's length to read it?arrow_forwardWhen focusing the light of the sun onto a plane above a concave spherical mirror, you notice there is a specific distance that focuses the light to the smallest point and achieves the highest temperature above the mirror. What is this distance? a) Twice the radius of curvature b) The radius of curvature c) Half the radius of curvature d) Twice the focal lengtharrow_forwardIf you wear corrective lenses, one option is to get laser vision corrective surgery. Explain what the laser does to correct vision in such a procedure.arrow_forward
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