College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Question
Chapter 23, Problem 10P
(a)
To determine
The frequency ranges of UVA and UVB.
(b)
To determine
The range of wave number for UVA and UVB.
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Chapter 23 Solutions
College Physics (10th Edition)
Ch. 23 - Prob. 1CQCh. 23 - Why is the average radiation pressure on a...Ch. 23 - Prob. 3CQCh. 23 - How does the refraction of light account for the...Ch. 23 - Light requires about 8 min to travel from the sun...Ch. 23 - Prob. 6CQCh. 23 - A student claimed that, because of atmospheric...Ch. 23 - If you look at your pet fish through the corner of...Ch. 23 - How could you determine the direction of the...Ch. 23 - In three-dimensional movies, two images are...
Ch. 23 - Prob. 11CQCh. 23 - When light is incident on an interface between two...Ch. 23 - A ray is traveling in material a when it reaches...Ch. 23 - Unpolarized light with an original intensity I0...Ch. 23 - Prob. 3MCPCh. 23 - If a sinusoidal electromagnetic wave with...Ch. 23 - A plane electromagnetic wave is traveling...Ch. 23 - A ray of light going from one material into...Ch. 23 - Which of the following statements about radio...Ch. 23 - Two lasers each produce 2 mW beams. The beam of...Ch. 23 - A ray of light follows the path shown in Figure...Ch. 23 - A light beam has a wavelength of 300 nm in a...Ch. 23 - Prob. 11MCPCh. 23 - Prob. 12MCPCh. 23 - When a solar flare erupts on the surface of the...Ch. 23 - The microprocessor in a modern laptop computer...Ch. 23 - (a) How much time does it take light to travel...Ch. 23 - A geostationary communications satellite orbits...Ch. 23 - Prob. 5PCh. 23 - Prob. 6PCh. 23 - Prob. 7PCh. 23 - Prob. 8PCh. 23 - Visible light. The wavelength of visible light...Ch. 23 - Prob. 10PCh. 23 - Medical x rays. Medical x rays are taken with...Ch. 23 - Prob. 12PCh. 23 - Prob. 13PCh. 23 - Prob. 14PCh. 23 - Prob. 15PCh. 23 - Laboratory lasers. HeNe lasers are often used in...Ch. 23 - Prob. 17PCh. 23 - High-energy cancer treatment. Scientists are...Ch. 23 - Prob. 19PCh. 23 - The intensity at a certain distance from a bright...Ch. 23 - A sinusoidal electromagnetic wave from a radio...Ch. 23 - Prob. 22PCh. 23 - Prob. 23PCh. 23 - A sinusoidal electromagnetic wave emitted by a...Ch. 23 - Two plane mirrors intersect at right angles. A...Ch. 23 - Two plane mirrors A and 8 intersect at a 45 angle....Ch. 23 - Prove that when a ray of light travels at any...Ch. 23 - A light beam travels at 1.94 108 m/s in quartz....Ch. 23 - Prob. 29PCh. 23 - Light with a frequency of 5.80 1014 Hz travels in...Ch. 23 - Prob. 31PCh. 23 - Light inside the eye. The vitreous humor, a...Ch. 23 - Prob. 33PCh. 23 - A 1 55-m-tall fisherman stands at the edge of a...Ch. 23 - A light ray passes through a rectangular slab of...Ch. 23 - A glass plate having parallel faces and a...Ch. 23 - A beam of light in air makes an angle of 47.5 with...Ch. 23 - Reversibility of rays. Ray 1 of light in medium a...Ch. 23 - You (height of your eyes above the water. 1.75 m)...Ch. 23 - A parallel-sided plate of glass having a...Ch. 23 - As shown in Figure 23.53, a layer of water covers...Ch. 23 - A ray of light in diamond (index of refraction...Ch. 23 - The critical angle for total internal reflection...Ch. 23 - A ray of light is traveling in a glass cube that...Ch. 23 - Light is incident along the normal to face AB of a...Ch. 23 - Light pipe. Light enters a solid tube made of...Ch. 23 - Prob. 47PCh. 23 - A beam of light strikes a sheet of glass at an...Ch. 23 - The table gives the index of refraction of fused...Ch. 23 - Use the graph in Figure 23.29 for silicate flint...Ch. 23 - The indices of refraction for violet light ( = 400...Ch. 23 - Unpolarized light with intensity I0 is incident on...Ch. 23 - Unpolarized light is incident on two ideal...Ch. 23 - A beam of unpolarized light of intensity I0 passes...Ch. 23 - Three ideal polarizing filters are stacked, with...Ch. 23 - Light of original intensity I0 passes through two...Ch. 23 - The polarizing angle for light in air incident on...Ch. 23 - A beam of polarized light passes through a...Ch. 23 - A beam of unpolarized light in air is incident at...Ch. 23 - Plane-polarized light passes through two...Ch. 23 - The energy flow to the earth from sunlight is...Ch. 23 - Prob. 62GPCh. 23 - A powerful searchlight shines on a man. The mans...Ch. 23 - Prob. 64GPCh. 23 - Prob. 65GPCh. 23 - Prob. 66GPCh. 23 - Solar sail. NASA is doing research on the concept...Ch. 23 - A thick layer of oil is floating on the surface of...Ch. 23 - Prob. 69GPCh. 23 - A light ray in air strikes the right-angle prism...Ch. 23 - A ray of light is incident in air on a block of a...Ch. 23 - A light beam is directed parallel to the axis of a...Ch. 23 - Heart sonogram. Physicians use high-frequency (f =...Ch. 23 - A light ray refracts through a glass block having...Ch. 23 - A beaker with a mirrored bottom is filled with a...Ch. 23 - A ray of light traveling in a block of glass (n =...Ch. 23 - In a physics lab, light with wavelength 490 nm...Ch. 23 - The refractive index of a certain glass is 1.66....Ch. 23 - A thin layer of ice (n = 1.309) floats on the...Ch. 23 - Optical activity of biological molecules. Many...Ch. 23 - Passage Problems Safe exposure to electromagnetic...Ch. 23 - Doubling the frequency of a wave in the range of...Ch. 23 - The ICNIRP also has guidelines for magnetic-field...Ch. 23 - First, light with a plane of polarization at 45 to...Ch. 23 - Prob. 85PPCh. 23 - To vary the angle as well as the intensity of...
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- Ultraviolet (UV) radiation is a part of the electromagnetic spectrum that reaches the Earth from the Sun. It has wave-lengths shorter than those of visible light, making it invisible to the naked eye. These wavelengths are classified as UVA, UVB, or UVC, with UVA the longest of the three at 320 nm to 400 nm. Both the U.S. Department of Health and Human Services and the World Health Organization have identified UV as a proven human carcinogen. Many experts believe that, especially for fair-skinned people, UV radiation frequently plays a key role in melanoma, the deadliest form of skin cancer, which kills more than 8000 Americans each year. UVB has a wave-length between 280 nm and 320 nm. Determine the frequency ranges of UVA and UVB.arrow_forwardSuppose a star 1000 times brighter than our Sun (that is, emitting 1000 times the power) suddenly goes supernova. Using data from Table 7.3: (a) By what factor does its power output increase? (b) How many times brighter than our entire Milky Way galaxy is the supernova? (c) Based on your answers, discuss whether it should be possible to observe supernovas in distant galaxies. Note that there are on the order of 1011 observable galaxies, the average brightness of which is somewhat less than our own galaxy.arrow_forward(a) Calculate the wavelength of light in vacuum that has a frequency of 5.06 x 10 18 nm (b) What is its wavelength in flint glass? nm (c) Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. eV (d) Does the energy of the photon change when it enters the flint glass? The energy of the photon changes. The energy of the photon does not change. Hz. Explain.arrow_forward
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