Modified Mastering Physics without Pearson eText-- Instant Access -- for Physics for Scientists & Engineers with Modern Physics
5th Edition
ISBN: 9780134402659
Author: GIANCOLI, Douglas
Publisher: PEARSON
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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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If 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.
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.
(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.
Chapter 32 Solutions
Modified Mastering Physics without Pearson eText-- Instant Access -- for Physics for Scientists & Engineers with Modern Physics
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_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(1) A ray of light is normally incident on the left face of the quarter- round prism shown. The ray horizontally enters the glass prism 9 cm above its base and then emerges from its circular surface. If the index of refraction of the prism is 1.50, find the angle that the emerging ray makes with respect to the horizontal. State your an- swer as a number of degrees (rounded to 3 significant figures) above or below the horizontal. air air ray 9 cm prism 15 cmarrow_forwardA ray of light is incident on a glass prism (n = 1.6) with an angle of incidence 0, emerges from the opposite side of the prism with an angle 0,. The apex angle of the prism is 60° The deviation angle, 8, between the incident ray and the emerging ray is then: = 40°. The ray 60° 0, = 40° Nair =1 O 21.7° O 51.3 O 44.5° 38.4 13.8arrow_forward
- 109 In Fig. 34-54, a fish watcher at point P watches a fish through a glass wall of a fish tank. The watcher is level with the fish; the index of re- fraction of the glass is 8/5, and that Watcher of the water is 4/3. The distances are di = 8.0 cm, dz = 3.0 cm, and dz = 6.8 cm. (a) To the fish, how far away does the watcher appear to be? (Hint: The watcher is the object. Light from that object passes through the wall's outside surface, which acts as a refracting sur- face. Find the image produced by that surface. Then treat that im- age as an object whose light passes through the wall's inside sur- face, which acts as another refracting surface.) (b) To the watcher, how far away does the fish appear to be? de D Wall Figure 34-54 Problem 109.arrow_forwardYou look into an aquarium and view a fish inside. One ray of light from the fish is shown emerging from the tank in Fig. 23-48. The apparent position of the fish is also shown (dashed ray). In the drawing, indicate the approximate position of the actual fish. Briefly justify your answer. Image FIGURE 23-48 Question 12.arrow_forwardLight enters air from water. The angle of refraction will be O greater than the angle of incidence. O equal to the angle of incidence. O less than the angle of incidence.arrow_forward
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