University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Chapter 33, Problem Q33.2DQ
Sunlight or starlight passing through the earth’s atmosphere is always bent toward the vertical. Why? Does this mean that a star is not really where it appears to be? Explain.
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When the sun is either rising or setting and appears to be just on the horizon, it is in fact below the horizon. The explanation for this seeming paradox is that light from the sun bends slightly when entering the earth’s atmosphere, as shown in Fig. Since our perception is based on the idea that light travels in straight lines, we perceive the light to be coming from an apparent position that is an angle d above the sun’s true position. (a) Make the simplifying assumptions that the atmosphere has uniform density, and hence uniform index of refraction n, and extends to a height h above the earth’s surface, at which point it abruptly stops. Show that the angle d is given by as attached. where R = 6378 km is the radius of the earth. (b) Calculate d using n = 1.0003 and h = 20 km. How does this compare to the angular radius of the sun, which is about one quarter of a degree? (In actuality a light ray from the sun bends gradually, not abruptly, since the density and refractive index of the…
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Chapter 33 Solutions
University Physics (14th Edition)
Ch. 33 - Light requires about 8 minutes to travel from the...Ch. 33 - Sunlight or starlight passing through the earths...Ch. 33 - A beam of light goes from one material into...Ch. 33 - Prob. Q33.4DQCh. 33 - Prob. Q33.5DQCh. 33 - Prob. Q33.7DQCh. 33 - Prob. Q33.8DQCh. 33 - A ray of light in air strikes a glass surface. Is...Ch. 33 - When light is incident on an interface between two...Ch. 33 - A salesperson at a bargain counter claims that a...
Ch. 33 - Does it make sense to talk about the polarization...Ch. 33 - How can you determine the direction of the...Ch. 33 - It has been proposed that automobile windshields...Ch. 33 - When a sheet of plastic food wrap is placed...Ch. 33 - If you sit on the beach and look at the ocean...Ch. 33 - When unpolarized light is incident on two crossed...Ch. 33 - For the old rabbit-ear style TV antennas, its...Ch. 33 - In Fig. 33.31, since the light that is scattered...Ch. 33 - You are sunbathing in the late afternoon when the...Ch. 33 - Light scattered from blue sky is strongly...Ch. 33 - Atmospheric haze is due to water droplets or smoke...Ch. 33 - Prob. Q33.23DQCh. 33 - Prob. Q33.24DQCh. 33 - Prob. Q33.25DQCh. 33 - Prob. 33.1ECh. 33 - BIO Light Inside the Eye. The vitreous humor, a...Ch. 33 - A beam of light has a wavelength of 650 nm in...Ch. 33 - Light with a frequency of 5.80 1014 Hz travels in...Ch. 33 - A light beam travels at 1.94 108 m/s in quartz....Ch. 33 - Prob. 33.6ECh. 33 - A parallel beam of light in air makes an angle of...Ch. 33 - Prob. 33.8ECh. 33 - Light traveling in air is incident on the surface...Ch. 33 - (a) A tank containing methanol has walls 2.50 cm...Ch. 33 - Prob. 33.11ECh. 33 - A horizontal, parallel-sided plate of glass having...Ch. 33 - A ray of light is incident on a plane surface...Ch. 33 - Prob. 33.14ECh. 33 - Section 33.3 Total Internal Reflection 33.15Light...Ch. 33 - A flat piece of glass covers the top of a vertical...Ch. 33 - The critical angle for total internal reflection...Ch. 33 - A beam of light is traveling inside a solid glass...Ch. 33 - A ray of light is traveling in a glass cube that...Ch. 33 - Prob. 33.20ECh. 33 - Prob. 33.21ECh. 33 - The indexes of refraction for violet light ( = 400...Ch. 33 - A narrow beam of white light strikes one face of a...Ch. 33 - A beam of light strikes a sheet of glass at an...Ch. 33 - Unpolarized light with intensity I0 is incident on...Ch. 33 - (a) At what angle above the horizontal is the sun...Ch. 33 - A beam of unpolarized light of intensity I0 passes...Ch. 33 - Light of original intensity I0 passes through two...Ch. 33 - A parallel beam of unpolarized light in air is...Ch. 33 - The refractive index of a certain glass is 1.66....Ch. 33 - A beam of polarized light passes through a...Ch. 33 - Three polarizing filters are stacked, with the...Ch. 33 - Unpolarized light of intensity 20.0 W/cm2 is...Ch. 33 - Three Polarizing Filters. Three polarizing filters...Ch. 33 - A beam of white light passes through a uniform...Ch. 33 - A light beam is directed parallel to the axis of a...Ch. 33 - BIO Heart Sonogram. Physicians use high-frequency...Ch. 33 - In a physics lab, light with wavelength 490 nm...Ch. 33 - Prob. 33.39PCh. 33 - Prob. 33.40PCh. 33 - A ray of light traveling in a block of glass (n =...Ch. 33 - A ray of light traveling in air is incident at...Ch. 33 - A glass plate 2.50 mm thick, with an index of...Ch. 33 - After a long day of driving you take a late-night...Ch. 33 - You sight along the rim of a glass with vertical...Ch. 33 - Prob. 33.46PCh. 33 - A thin layer of ice (n = 1.309) floats on the...Ch. 33 - A 454590 prism is immersed in water. A ray of...Ch. 33 - Prob. 33.49PCh. 33 - Light is incident normally on the short face of a...Ch. 33 - Prob. 33.51PCh. 33 - Prob. 33.52PCh. 33 - Prob. 33.53PCh. 33 - Prob. 33.54PCh. 33 - Prob. 33.55PCh. 33 - A thin beam of white light is directed at a flat...Ch. 33 - DATA In physics lab, you are studying the...Ch. 33 - Prob. 33.58PCh. 33 - DATA A beam of light traveling horizontally is...Ch. 33 - Prob. 33.60CPCh. 33 - Prob. 33.61CPCh. 33 - First, light with a plane of polarization at 45 to...Ch. 33 - Next unpolarized light is reflected off a smooth...Ch. 33 - To vary the angle as well as the intensity of...
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