Physics for Scientists and Engineers (Chaps 1-38)
4th Edition
ISBN: 9780132275590
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Textbook Question
Chapter 32.1, Problem 1BE
Return to the Chapter-Opening Question, page 837, and answer it again now.
Try to explain why you may have answered differently the first time.
CHAPTER-OPENING QUESTION—Guess now!
A 2.0-m-tall person is standing 2.0 m from a flat vertical mirror staring at her image. What minimum height must the mirror have it the person is to see her entire body, from the top of her head to her feet?
- (a) 0.50 m.
- (b) 1.0 m.
- (c) 1.5 m.
- (d) 2.0 m.
- (e) 2.5 m.
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Students have asked these similar questions
1. Find the focal length of a biconcave lens (n = 1.65) if the magnitudes of the radii of curvature are 0.40
m and 0.60 m. In your solution, did it matter which was surface A and which was surface B? Briefly
explain (or show your solution).
2. When a glass lens is submerged in water, is its focal length less than, equal to, or greater than when it
is surrounded by air? Explain using Snell’s law.
3. A small insect viewed through a convex lens is 1.8 cm from the lens and appears 2.5 times larger than
its actual size. What is the focal length of the lens?
A concave lens refracts parallel rays in such a way that they are bent away from the axis of the lens. For this reason, a concave lens is referred to as a diverging lens.
Part A: Consider the following diagrams, where F represents the focal point of a concave lens. In these diagrams, the image formed by the lens is obtained using the ray tracing technique. Which diagrams are accurate?(Figure 1)
*Type A if you think that only diagram A is correct, type AB if you think that only diagrams A and B are correct, and so on.
Part B: If the focal length of the concave lens is -7.50 cm , at what distance d_o from the lens should an object be placed so that its image is formed 3.70 cm from the lens?
An object is placed 10 m before a convex lens with focal length 5.2 m . Another concave lens is placed 15.6 m behind the first lens with a focal length −7.2 m (see the figure below).
Note: Make a ray diagram sketch in order to check your numerical answer.
At what distance is the first image from the first lens?
Answer in units of m.
What is the magnification of the first image?
At what distance is the second image from the second lens?
Answer in units of m.
What is the magnification of the final image, when compared to the initial object?
Chapter 32 Solutions
Physics for Scientists and Engineers (Chaps 1-38)
Ch. 32.1 - Does the result of Example 322 depend on your...Ch. 32.1 - Return to the Chapter-Opening Question, page 837,...Ch. 32.1 - Suppose you are standing about 3 m in front of a...Ch. 32.5 - Light passes from a medium with n = 1.3 into a...Ch. 32.7 - Fill a sink with water. Place a waterproof watch...Ch. 32.7 - It 45.0 plastic lenses are used in binoculars,...Ch. 32 - What would be the appearance of the Moon if it had...Ch. 32 - Archimedes is said to have burned the whole Roman...Ch. 32 - What is the focal length of a plane mirror? What...Ch. 32 - An object is placed along the principal axis of a...
Ch. 32 - Using the rules for the three rays discussed with...Ch. 32 - Prob. 6QCh. 32 - If a concave mirror produces a real image, is the...Ch. 32 - Prob. 8QCh. 32 - When you look at the Moons reflection from a...Ch. 32 - How can a spherical mirror have a negative object...Ch. 32 - Prob. 11QCh. 32 - When you look down into a swimming pool or a lake,...Ch. 32 - Draw a ray diagram to show why a stick looks bent...Ch. 32 - Prob. 14QCh. 32 - You look into an aquarium and view a fish inside....Ch. 32 - Prob. 16QCh. 32 - A ray of light is refracted through three...Ch. 32 - Can a light ray traveling in air be totally...Ch. 32 - When you look up at an object in air from beneath...Ch. 32 - What type of mirror is shown in Fig. 3244?Ch. 32 - Light rays from stars (including our Sun) always...Ch. 32 - (I) When you look at yourself in a 60-cm-tall...Ch. 32 - (I) Suppose that you want to take a photograph of...Ch. 32 - (II) Two plane mirrors meet at a 135 angle, Fig....Ch. 32 - (II) A person whose eyes are 1.64 m above the...Ch. 32 - (II) Show that if two plane mirrors meet at an...Ch. 32 - (II) Suppose you are 88 cm from a plane mirror....Ch. 32 - (II) Stand up two plane minors so they form a 90.0...Ch. 32 - (III) Suppose a third mirror is placed beneath the...Ch. 32 - (I) A solar cooker, really a concave mirror...Ch. 32 - (I) How far from a concave mirror (radius 24.0cm)...Ch. 32 - (I) When walking toward a concave mirror you...Ch. 32 - (II) A small candle is 35 cm from a concave mirror...Ch. 32 - (II) You look at yourself in a shiny...Ch. 32 - (II) A mirror at an amusement park shows an...Ch. 32 - (II) A dentist wants a small mirror that, when...Ch. 32 - (II) Some rearview mirrors produce images of cars...Ch. 32 - (II) You are standing 3.0 m from a convex security...Ch. 32 - (II) An object 3.0 mm high is placed 18 cm from a...Ch. 32 - (II) The image of a distant tree is virtual and...Ch. 32 - (II) Use two techniques, (a) a ray diagram, and...Ch. 32 - (II) Show, using a ray diagram, that the...Ch. 32 - (II) Use ray diagrams to show that the mirror...Ch. 32 - (II) The magnification of a convex mirror is +0.55...Ch. 32 - (II) (a) Where should an object be placed in front...Ch. 32 - (II) A 4.5-cm tall object is placed 26 cm in front...Ch. 32 - (II) A shaving or makeup mirror is designed to...Ch. 32 - (II) Let the focal length of a convex mirror be...Ch. 32 - (II) A spherical mirror of focal length f produces...Ch. 32 - Prob. 30PCh. 32 - (III) A short thin object (like a short length of...Ch. 32 - (I) The speed of light in ice is 2.29 108 m/s....Ch. 32 - (I) What is the speed of light in (a) ethyl...Ch. 32 - (I) Our nearest star (other than the Sun) is 4.2...Ch. 32 - (I) How long does it take light to reach us from...Ch. 32 - (II) The speed of light in a certain substance is...Ch. 32 - (II) Light is emitted from an ordinary lightbulb...Ch. 32 - (I) A diver shines a flashlight upward from...Ch. 32 - (I) A flashlight beam strikes the surface of a...Ch. 32 - Prob. 40PCh. 32 - (I) A light beam coming from an underwater...Ch. 32 - (II) A beam of light in air strikes a slab of...Ch. 32 - (II) A light beam strikes a 2.0-cm-thick piece of...Ch. 32 - (II) An aquarium filled with water has flat glass...Ch. 32 - (II) In searching the bottom of a pool at night, a...Ch. 32 - (II) The block of glass (n = 1.5) shown in cross...Ch. 32 - (II) A laser beam of diameter d1 = 3.0 mm in air...Ch. 32 - (II) Light is incident on an equilateral glass...Ch. 32 - (II) A triangular prism made of crown glass (n =...Ch. 32 - (II) Show in general that for a light beam...Ch. 32 - (III) A light ray is incident on a flat piece of...Ch. 32 - (I) By what percent is the speed of blue light...Ch. 32 - (I) A light beam strikes a piece of glass at a...Ch. 32 - (II) A parallel beam of light containing two...Ch. 32 - (III) A ray of light with wavelength is incident...Ch. 32 - (III) For visible light, the index of refraction n...Ch. 32 - (I) What is the critical angle for the interlace...Ch. 32 - (I) The critical angle for a certain liquidair...Ch. 32 - (II) A beam of light is emitted in a pool of water...Ch. 32 - (II) A ray of light, after entering a light fiber,...Ch. 32 - (II) A beam of light is emitted 8.0cm beneath the...Ch. 32 - (II) Figure 3257 shows a liquid-detecting prism...Ch. 32 - (II) Two rays A and B travel down a cylindrical...Ch. 32 - (II) (a) What is the minimum index of refraction...Ch. 32 - (III) Suppose a ray strikes the left face of the...Ch. 32 - (III) A beam of light enters the end of an optic...Ch. 32 - (II) A 13.0-cm-thick plane piece of glass (n =...Ch. 32 - (II) A fish is swimming in water inside a thin...Ch. 32 - (III) In Section 32-8, we derived Eq. 32-8 for a...Ch. 32 - Two identical concave mirrors are set facing each...Ch. 32 - A slab of thickness D, whose two faces are...Ch. 32 - Two plane mirrors are facing each other 2.2 m...Ch. 32 - We wish to determine the depth of a swimming pool...Ch. 32 - A 1.80-m-tall person stands 3.80 m from a convex...Ch. 32 - Prob. 76GPCh. 32 - Each student in a physics lab is assigned to find...Ch. 32 - A kaleidoscope makes symmetric patterns with two...Ch. 32 - When light passes through a prism, the angle that...Ch. 32 - If the apex angle of a prism is = 72 (see Fig....Ch. 32 - Fermats principle slates that light travels...Ch. 32 - Suppose Fig. 3236 shows a cylindrical rod whose...Ch. 32 - An optical fiber is a long transparent cylinder of...Ch. 32 - An object is placed 15 cm from a certain mirror....Ch. 32 - The end faces of a cylindrical glass rod (n =...Ch. 32 - The paint used or highway signs often contains...
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