Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 4, Problem 8QAP
To determine
The change in
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In a dispersive medium, the speed of light is a function of ………………
The speed of light in a vacuum is 3 x 108 m/s. What is the ratio of its speed in water (n = 1.33) to its speed in a vacuum? Enter your answer as a percentage
The velocity of light in glass is 2 × 10'
m/s. If refractive index of glass with respect to
water is 9/8, then the velocity of light in water
is
(a)
1.6 x 10° m/s
(b)
1.33 x 10° m/s
(c)
3 x 10° m/s
(d)
2.25 x 10° m/sec
Chapter 4 Solutions
Understanding Our Universe
Ch. 4.1 - Prob. 4.1CYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4 - Prob. 1QAPCh. 4 - Prob. 2QAPCh. 4 - Prob. 3QAPCh. 4 - Prob. 4QAPCh. 4 - Prob. 5QAPCh. 4 - Prob. 6QAPCh. 4 - Prob. 7QAP
Ch. 4 - Prob. 8QAPCh. 4 - Prob. 9QAPCh. 4 - Prob. 10QAPCh. 4 - Prob. 11QAPCh. 4 - Prob. 12QAPCh. 4 - Prob. 13QAPCh. 4 - Prob. 14QAPCh. 4 - Prob. 15QAPCh. 4 - Prob. 16QAPCh. 4 - Prob. 17QAPCh. 4 - Prob. 18QAPCh. 4 - Prob. 19QAPCh. 4 - Prob. 20QAPCh. 4 - Prob. 21QAPCh. 4 - Prob. 22QAPCh. 4 - Prob. 23QAPCh. 4 - Prob. 24QAPCh. 4 - Prob. 25QAPCh. 4 - Prob. 26QAPCh. 4 - Prob. 27QAPCh. 4 - Prob. 28QAPCh. 4 - Prob. 29QAPCh. 4 - Prob. 30QAPCh. 4 - Prob. 31QAPCh. 4 - Prob. 32QAPCh. 4 - Prob. 33QAPCh. 4 - Prob. 34QAPCh. 4 - Prob. 35QAPCh. 4 - Prob. 36QAPCh. 4 - Prob. 37QAPCh. 4 - Prob. 38QAPCh. 4 - Prob. 39QAPCh. 4 - Prob. 40QAPCh. 4 - Prob. 41QAPCh. 4 - Prob. 42QAPCh. 4 - Prob. 43QAPCh. 4 - Prob. 44QAPCh. 4 - Prob. 45QAP
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- When light travels from medium X to medium Y as shown: X Y both the speed and the frequency decrease both the wavelength and the frequency are unchanged both the speed and the wavelength increase both the speed and the wavelength decrease both the speed and the frequency increasearrow_forwardA prism can split light up into its colors because the speed of the different colors of light in glass varies slightly, with purple being the slowest, and red the fastest. White light is shined through a prism, which of the following describes the light that emerges from the prism? After passing through the triangular prism, the light becomes triangular shaped The light splits into its colors, with purple bending the most Only white light emerges from the prism O The light splits into its colors, with purple bending the leastarrow_forwardWhen high-energy charged particles move through a transparent medium with a speed greater than the speed of light in that medium, a shock wave, or bow wave, of light is produced. This phenomenon is called the Cerenkov effect. When a nuclear reactor is shielded by a large pool of water, Cerenkov radiation can be seen as a blue glow in the vicinity of the reactor core due to high-speed electrons moving through the water as shown. In a particular case, the Cerenkov radiation produces a wave front with an apex half-angle of 53.0°. Calculate the speed of the electrons in the water. The speed of light in water is 2.25 × 108 m/s.arrow_forward
- The wavelength of visible light is from, O 400 m to 700 m O 400 km to 700 km O 400 cm to 700 cm O 400 nm to 700 nmarrow_forwardHow far does light travel in one year? [This distance is know as a light-year (ly) and is used in measuring astronomical distances.]arrow_forwardIf a beam of light has a frequency of 5.04 E 14, what is its wavelength? a 3.00 E −8 m b 5.95 E 7 m c 6.70 E 7 m d 1.15 E 6 marrow_forward
- Pretend that a person can walk only at a certain pace—no faster, no slower. If you time her uninterrupted walk across a room of known length, you can calculate her walking speed. If. however, she stops momentarily along the way to greet others in the room, the extra time spent in her brief interactions gives an average speed across the room that is less than her walking speed. How is this similar to light passing through glass? In what way does it differ?arrow_forwardMake a general statement comparing the speed of light with the speed of sound. Give an example of how the principles mentioned might be demonstrated.arrow_forwardLight passes from air into ice with part of the ray reflected and part refracted. The reflected and refracted rays are at 90° with each other. What is the velocity of light in ice? 2.11 X 108 m/s 2.01 X 108 m/s 1.94 X 108 m/s 1.73 X 108 m/sarrow_forward
- What is the speed of light traveling from air to a medium of refractive index n=1.5? (Speed of light in vacuum is 3.0 × 108 m/s) O 3.0 x 108 m/s. O 1.5 x 108 m/s. O 2.0 × 108 m/s. O 0.67 x 108 m/s. O 0.75 x 108 m/s.arrow_forwardThe speed of light in (m/s) in diamond (u = 2.42) is: 2.14 x 108 2.30 x 108 1.24 x 108 3.00 x 108arrow_forwardA linearly polarized light wave is always a) in x-y plane. b) a transverse wave. c) a longitudinal wave. d) in y-z plane.arrow_forward
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