Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 33, Problem 56P
Rainbows from square drops. Suppose that, on some surreal world, raindrops had a square cross section and always tell with one face horizontal. Figure 33-56 shows such a falling drop, with a white beam of sunlight incident at θ = 70.0° at point P. The part of the light that enters the drop then travels to point A, where some of it refracts out into the air and the rest reflects. Thai reflected light then travels to point where again some of the light refracts out into the air and the rest reflects. What is the difference in the angles of the red light (n = 1.331) and the blue light (n = 1.343) that emerge at (a) point A and (b) point B? (This angular difference in the light emerging at, say, point A would be the rainbow's angular width.)
Figure 33-56 Problem 56.
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77 E Rainbow. Figure 33-67 shows a light ray entering and
then leaving a falling, spherical raindrop after one internal reflec-
tion (see Fig. 33-21a). The final direction of travel is deviated
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Bdev- (a) Show that 6sey is
Odey = 180° + 20, – 48,
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values and for n = 1.331 for red light (at one end of the visible
spectrum) and n = 1.333 for blue light (at the other end).
The red-light curve and the blue-light curve have different
minima, which means that there is a different angle of minimum
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any given color that leaves the drop
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Air
51 O In Fig. 33-51, light is incident
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tween two transparent materials.
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106 In Fig. 33-78, where n, = 1.70,
n2 = 1.50, and nz = 1.30, light re-
%3D
fracts from material 1 into material
2. If it is incident at point A at the
critical angle for the interface be-
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Figure 33-78 Problem 106.
Chapter 33 Solutions
Fundamentals of Physics Extended
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