COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 23, Problem 50QAP
To determine
(a)
The angle at which the beam of light emerges from the opposite face.
To determine
(b)
The distance along the right face of the prism between the points where red light and violet light emerges back into air.
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•1 In Fig. 35-31, a light wave along
ray r, reflects once from a mirror and
a light wave along ray r, reflects twice
from that same mirror and once from
a tiny mirror at distance L from the
bigger mirror. (Neglect the slight tilt Figure 35-31 Problems 1 and 2.
of the rays.) The waves have wave-
length 620 nm and are initially in phase. (a) What is the smallest value
of L that puts the final light waves exactly out of phase? (b) With the
tiny mirror initially at that value of L, how far must it be moved away
from the bigger mirror to again put the final waves out of phase?
•45 When the rectangular metal
tank in Fig. 33-46 is filled to the top
with an unknown liquid, observer o-
O, with eyes level with the top of
the tank, can just see corner E. A
ray that refracts toward O at the top
surface of the liquid is shown. If
D = 85.0 cm and L = 1.10 m, what
-Normal to
liquid surface
is the index of refraction of the
liquid?
-L-
•8 In Fig. 35-33, two light pulses
are sent through layers of plastic
Pulse
п
п
with thicknesses of either L or 2L
as shown and indexes of refraction
Pulse
n = 1.55, nz = 1.70, nz = 1.60, n4 = i
1.45, ng = 1.59, ng = 1.65, and n, =
1.50. (a) Which pulse travels
through the plastic in less time?
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times of the pulses?
%3D
Figure 35-33 Problem 8.
Chapter 23 Solutions
COLLEGE PHYSICS
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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 ray of light in air is incident at an angle of 25.0° on a glass slide with index of refraction 1.67. (a) At what angle is the ray refracted? • from the normal (b) If the wavelength of the light in vacuum is 520 nm, find its wavelength in the glass. nmarrow_forward• A horizontal 5.0 mW laser beam that is vertically polar- 54 ized is incident on a polarizing sheet that is oriented with its trans- mission axis vertical. Behind the first sheet is a second sheet that is oriented so that its transmission axis makes an angle of 27° with re- spect to vertical. What is the power of the beam transmitted through the second sheet?arrow_forward• A beam of light strikes the plane surface of silicate flint glass at an angle of incidence of 45°. The index of refraction of the glass varies with wavelength (see Figure 31-59). How much smaller is the angle of refraction for violet light of wavelength 400 nm than the angle of refraction for red light of wavelength 700 nm? 49 11 1.7 Silicate flint glass 1.6 Borate flint glass Quartz Silicate crown glass 1.5 Violet Red 1.4 400 500 600 700 2, nmarrow_forward
- •34 G In Fig. 33-41, a beam of unpolarized light, with intensity 43 W/m?, is sent into a system of two polarizing sheets with polarizing directions at angles 6,= 70° and 02 = 90° to the y axis. What is the intensity of -x- Ө. the light transmitted by the system?arrow_forward•49 Figure 33-49 shows light re- flecting from two perpendicular reflecting surfaces A and B. Find the angle between the incoming ray i and the outgoing ray r'. B.arrow_forward•48 A high-powered laser beam (A = 600 nm) with a beam diam- eter of 12 cm is aimed at the Moon, 3.8 x 10° km distant. The beam spreads only because of diffraction. The angular location of the edge of the central diffraction disk (see Eq. 36-12) is given by 1.22A sin 0 where d is the diameter of the beam aperture. What is the diameter of the central diffraction disk on the Moon's surface?arrow_forward
- •39 In Fig. 34-38, a beam of parallel light rays from a laser is in- cident on a solid transparent sphere of index of refraction n. (a) If a point image is produced at the back of the sphere, what is the index of refraction of the sphere? (b) What index of refraction, if any, will produce a point image at the center of the sphere?arrow_forward•• ENGINEERING APPLICATION An optical fiber allows rays of light to propagate long distances by using total internal reflec- tion. Optical fibers are used extensively in medicine and in digital communications. As shown in Figure 31-58 the fiber consists of a core material that has an index of refraction n, and radius b sur- rounded by a cladding material that has an index of refraction n3 < n2. The numerical aperture of the fiber is defined as sine, where 0, is the angle of incidence of a ray of light that impinges on the center of the end of the fiber and then reflects off the core- cladding interface just at the critical angle. Using the figure as a guide, show that the numerical aperture is given by sine, = Vn3 - n? assuming the ray is initially in air. Hint: Use of the Pythagorean theorem may be required. 44arrow_forward•• Alight ray passes through a prism with an apex angle of a, as shown in Figure 31-62. The ray and the bisector of the apex angle intersect at right angles. Show that the angle of deviation & is related to the apex angle and the index of refraction of the prism material by sin {(a + 8)] = n sin(ta). 78arrow_forward
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