EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 32, Problem 45P
(II) The block of glass (n = 1.5) shown in cross section in Fig. 32–51 is surrounded by air. A ray of light enters the block at its left-hand face with incident angle θ1 and reemerges into the air from the right-hand face directed parallel to the block’s base. Determine θ1.
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Suppose a ray strikes the left face of the prism in Fig. 23–64
at 45.0° as shown, but is totally internally reflected at the
opposite side. If the apex angle (at the top) is 0 = 65.0°,
what can you say about the index of refraction of the prism?
(II) An aquarium filled with water has flat glass sides whose
index of refraction is 1.54. A beam of light from outside
the aquarium strikes the glass at a 43.5° angle to the
perpendicular (Fig. 23–56). What is the angle of this light
ray when it enters (a) the glass, and
then (b) the water? (c) What would be
the refracted angle if the ray entered
the water directly?
Glass
Air
Water
43.5°
FIGURE 23-56
Problem 32.
Light is incident on an equilateral glass prism at a 45.0°
angle to one face, Fig. 23–64. Calculate the angle at which
light emerges from the opposite face. Assume that
n = 1.54.
45.0°
FIGURE 23-64
Problems 80 and 81.
Chapter 32 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
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 - (I) When you look at yourself in a 60-cm-tall...Ch. 32 - (II) Show that if two plane mirrors meet at an...Ch. 32 - (II) The block of glass (n = 1.5) shown in cross...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 - Two identical concave mirrors are set facing each...Ch. 32 - A kaleidoscope makes symmetric patterns with two...
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- Suppose you are using total internal reflection to make an efficient corner reflector. If there is air outside and the incident angle is 45.0°, what must be the minimum index of refraction of the material from which the reflector is made?arrow_forwardCheck Your Understanding In the preceding example. how much distance inside the block of flint glass would the red and the violet rays have to progress before they are separated b 1.0 mm?arrow_forwardIf the light source in the preceding problem is changed, the angular position of the third maximum is found to be 0.57°. What is the wavelength of light being used now?arrow_forward
- Check Your Understanding At the surface between air and water, light rays can go from air to water and from water to air. For which ray is there no possibility of total internal reflection?arrow_forwardA planoconvex lens (Fig. 23–31a) has one flat surfaceand the other has R =14.5 cm. This lens is used to viewa red and yellow object which is 66.0 cm away from thelens. The index of refraction of the glass is 1.5106 for redlight and 1.5226 for yellow light. What are the locations ofthe red and yellow images formed by the lens? [Hint: SeeSection 23–10.]arrow_forwardIf the apex angle of a prism is $ = 75° (see Fig. 23–63), what is the minimum incident angle for a ray if it is to emerge from the opposite side (i.e., not be totally internally reflected), given n = 1.58? FIGURE 23-63 Problem 77.arrow_forward
- 112 You look down at a coin that lies at the bottom of a pool of liquid of depth d and index of refractionn To left (Fig. 34-57). Because you view with two eyes, which intercept different rays of light from the coin, you per- To right eye eye Air ceive the coin to be where extensions of the intercepted rays cross, at depth d, instead of d. Assuming that the intercepted rays in Fig. 34-57 are close to a vertical axis through the coin, show that d, = din. (Hint: Use the small-angle approximation sin 0 tan 6- 0.) Figure 34-57 Problem 112.arrow_forward(b) When light is incident on an interface between two materials with different index of refraction, the angle of the refracted ray depends on the wavelength. However, the angle of the reflected ray does not depend on the wavelength at all. Explain why this happens.arrow_forwardProblem 2 . (III) A beam of light enters the end of an optic fiber as shown in Fig. 32-59. (a) Show that we can guarantee total internal reflection at the side surface of the material (at point A), if the index of refraction is greater than about 1.42. In other words, regardless of the angle a, the light beam reflects back into the material at point A, assuming air outside. FIGURE 32-59 Problem 66. A B L ident Air Transparent o dose materialarrow_forward
- (c) Unpolarized light in air is incident on a plastic surface. The angle between the reflected and refracted ray is 90°. The angle of incidence is 56°. (i) State the name related to the angle of incidence in this situation (iii) Calculate the refractive index of the plastic.arrow_forward(c) A neighbouring building that rises some 9.0 m above the roof accommo- dating the solar generator, is located at 30° West of North some 10.0 m from the solar generator. Will the building cause shading losses within the high illumination hours during any part of the year?arrow_forward(i) State the laws of refraction of light. (ii) Write a relation between the angle of incidence (i), angle of emergence (e), angle of prism (A) and angle of deviation (d) for a ray of light passing through an equilateral prism.arrow_forward
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