Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
5th Edition
ISBN: 9780134402628
Author: Douglas C. Giancoli
Publisher: PEARSON
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Textbook Question
Chapter 31, Problem 9Q
Are the wavelengths of radio and television signals longer or shorter than those detectable by the human eye?
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Are the wavelengths of radio and television signals longeror shorter than those detectable by the human eye?
Are the wavelengths of radio and television signals longer or shorter than waves detectable by the human eye?
Consider the 100-MHz radio waves used in an MRI device.
Part (a) What is the wavelength, in meters, of these radio waves?
Part (b) If the frequencies are swept over a ±6.5 MHz range centered on 100 MHz, what is the minimum, in meters, of the range of wavelengths emitted?
Chapter 31 Solutions
Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
Ch. 31 - An electric field E points away from you, and its...Ch. 31 - Prob. 2QCh. 31 - Prob. 3QCh. 31 - The electric field in an EM wave traveling north...Ch. 31 - Is sound an electromagnetic wave? If not, what...Ch. 31 - Can EM waves travel through a perfect vacuum? Can...Ch. 31 - When you flip a light switch, does the overhead...Ch. 31 - Are the wavelengths of radio and television...Ch. 31 - What does the wavelength calculated in Example...Ch. 31 - Prob. 11Q
Ch. 31 - In the electromagnetic spectrum, what type of EM...Ch. 31 - Can radio waves have the same frequencies as sound...Ch. 31 - Discuss how cordless telephones make use of EM...Ch. 31 - Electromagnetic waves and sound waves can have the...Ch. 31 - What is the minimum angular speed at which...Ch. 31 - Prob. 37PCh. 31 - What size should the solar panel on a satellite...Ch. 31 - What is the range of wavelengths for (a) FM radio...Ch. 31 - Prob. 52GPCh. 31 - Prob. 54GPCh. 31 - Prob. 79GP
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- A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of this signal if it is received on a planet orbiting Proxima Centuri, the closest star to our Sun, at 4.243 ly away?arrow_forwardCertain orientations of a broadcast television antenna give better reception than others for a particular station. Explain.arrow_forwardCan the human body detect electromagnetic radiation that is outside the visible region of the spectrum?arrow_forward
- How does the wavelength of radio waves for an AM radio station broadcasting at 1030 KHz compare with the wavelength of the lowest audible sound waves (of 20 Hz). The speed of sound in air at 20 °C is about 343 m/s.arrow_forwardThe electric field of an electromagnetic wave traveling in vacuum is described by the following wave function: E =(5.00V/m)cos[kx(6.00109s1)t+0.40] j where k is the wavenumber in rad/m, x is in m, t s in Find the following quantities: (a) amplitude (b) frequency (c) wavelength (d) the direction of the travel of the wave (e) the associated magnetic field wavearrow_forwardSuppose a source of electromagnetic waves radiates uniformly in all directions in empty space where there are no absorption or interference effects. (a) Show that the intensity is inversely proportional to r2, distance from the source squared. (b) Show that the magnitudes of the electric and magnetic fields are inversely proportional to r.arrow_forward
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- Why don’t buildings block radio waves as completely as they do visible light?arrow_forwardWhat are the wavelengths of (a) X-rays of frequency 2.0 × 1017 Hz? (b) Yellow light of frequency 5.1 × 1014 Hz? (c) Gamma rays of frequency 1.0 × 1023 Hz?arrow_forwardYour favorite radio program broadcasts 96.3 MHz. What is the wavelength corresponding to this broadcast? Theoretically, the antenna of your radio is half of the wavelength of the radio waves. How long should the antenna be for this frequency?arrow_forward
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Spectra Interference: Crash Course Physics #40; Author: CrashCourse;https://www.youtube.com/watch?v=-ob7foUzXaY;License: Standard YouTube License, CC-BY