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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Textbook Question
Chapter 34, Problem 1P
(II) Derive the law of reflection—namely, that the angle of incidence equals the angle of reflection from a flat surface—using Huygens’ principle for waves.
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(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.
(I) Consider a film of MgF2 (n = 1.38) having a thickness of 8.68 x 10^-5 cm deposited on glass (n = 1.62). If white light falls perpendicular to the surface, what wavelengths are missing from the reflected light? (Hint: Remember only the wavelengths of visible light, between 400 nm and 700 nm.)If white light falls perpendicular to the surface, what wavelengths are missing from the reflected light?
(1), A light wave is incident upon an air/glass (ZF13, n=1.78 @ 632.8 nm) interface at an
angle of incidence 0-60°. The incident electric field can be described by:
8-(18+,+,)
√√√3
e,+e, cos(at-k), where k = --
2
The x, y and z directions are depicted in the Figure
Ꮎ
Air
Glass
(a) What fractions of the input power are in the TE and TM components, respectively,
of the input wave?
(b) What fraction of the incident wave power is transmitted?
Chapter 34 Solutions
Modified Mastering Physics without Pearson eText-- Instant Access -- for Physics for Scientists & Engineers with Modern Physics
Ch. 34 - Prob. 1QCh. 34 - What is the evidence that light is energy?Ch. 34 - Why is light sometimes described as rays and...Ch. 34 - We can hear sounds around corners but we cannot...Ch. 34 - Can the wavelength of light be determined from...Ch. 34 - Two rays of light from the same source...Ch. 34 - Monochromatic red light is incident on a double...Ch. 34 - If Youngs double-slit experiment were submerged in...Ch. 34 - Compare a double-slit experiment for sound waves...Ch. 34 - Suppose white light falls on the two slits of Fig....
Ch. 34 - Why doesnt the light from the two headlights of a...Ch. 34 - Why are interference fringes noticeable only for a...Ch. 34 - Prob. 14QCh. 34 - Some coated lenses appear greenish yellow when...Ch. 34 - A drop of oil on a pond appears bright at its...Ch. 34 - (II) Derive the law of reflectionnamely, that the...Ch. 34 - (II) Suppose a thin piece of glass is placed in...Ch. 34 - (I) If one slit in Fig. 3412 is covered, by what...Ch. 34 - (II) In a two-slit interference experiment, the...Ch. 34 - (II) (a) What is the smallest thickness of a soap...Ch. 34 - (III) The yellow sodium D lines have wavelengths...
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- Under what conditions can light be modeled like a ray? Like a wave?arrow_forwardWhat happens to a light wave when it travels from air into glass? (a) Its speed remains the same. (b) Its speed increases. (c) Its wavelength increases. (d) Its wavelength remains the same. (e) Its frequency remains the same.arrow_forwardWhat happens to a light wave when it travels from air into glass? (a) Its speed remains the same. (b) Its speed increases. (c) Its wavelength increases. (d) Its wavelength remains the same. (e) Its frequency remains the same.arrow_forward
- If bis Brewster’s angle for light reflected from the top of an interface between two substances, and bis Brewster’s angle for light reflected from below, prove that b+b=90.0arrow_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_forwardIn Section 9.6, we described how the speed of light varies with wavelength (or frequency) for transparent solids. But the speed of light in matter is also a function of temperature and pressure. This dependence is most marked for gases and is instrumental in producing such things as mirages and atmospheric refraction, the latter phenomenon being the displacement of an astronomical object (like the Sun or another star) from its true position because of the passage of its light through the atmosphere. Because Earth’s atmosphere is a gaseous mixture and easily compressed, its density is highest near Earth’s surface and gradually declines with altitude. (Refer to the discussion in Section 4.4 and Figure 4.29.) Thus, the speed of light in the atmosphere is lowest near the surface and gradually gets higher, approaching c as one goes farther and farther into space. Using this fact and the law of refraction, sketch the path a light ray from the Sun would follow upon entering Earth’s atmosphere, and predict the apparent position of the Sun relative to its true position (Figure 9.85). What does this tell you about the actual location of the Sun’s disk relative to your local horizon when you see it apparently setting brilliantly in the west in the evening?arrow_forward
- Which is true of diffraction? (7.6) (a) It occurs best when the slit width is less than the wavelength of a wave. (b) It depends on refraction. (c) It is caused by interference. (d) It does not occur for light.arrow_forwardHow can you use total internal reflection to estimate the index of refraction of a medium?arrow_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
- (b). A ray of light passes from glass to water. The angle of incidence in the glass is 35°, take the refractive indices of glass and water to be 1.52 and1.33, respectively. (i). What is the angle of refraction in the water? (ii). At what angle will total internal reflection occur between the glass-water interface?arrow_forwardThe co-efficient of reflection of an opaque body is 0.16. Its co-efficient of emission is - (a) (c) 0.94 0.74 (b) (d) 0.84 0.64arrow_forward4arrow_forward
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