College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Question
Transcribed Image Text:A mobile phone network uses microwaves to
transmit signals between mobile phones and
masts. The microwaves have a frequency of
1.5GHZ and travel at a speed of
300000000m/s. The
maximum distance that a phone can be from
a mast and still receive a signal is 35km.
Use an equation to find the wavelength of
microwaves
Transcribed Image Text:A mobile phone network uses microwaves to
transmit signals between mobile phones and
masts. The microwaves have a frequency of
1.5GHZ and travel at a speed of
300000000m/s. The
maximum distance that a phone can be from
a mast and still receive a signal is 35km.
Use an equation to find the time it would
take to send a message to a mast 35km
away
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A traveling electromagnetic wave in a vacuum has an electric field amplitude of 73.3 V/m. Calculate the intensity S of this wave. Then, determine the amount of energy U that flows through area of 0.0249 m² over an interval of 16.1 s, assuming that the area is perpendicular to the direction of wave propagation. S = W/m? U J * TOOLS x10arrow_forwardVHF, or very high frequency, refers to radio frequency electromagnetic waves in the range 30 to 300 MHz. In the U.S., television stations broadcast channels 2 through 13 in the VHF range between 54.0 MHz and 216 MHz, with ranges 72.0 to 76.0 MHz and 88.0 to 174 MHz not utilized for TV broadcasting. Each channel has a frequency width of 6.00 MHz. The table below gives the lower and upper frequency of each channel. Channel Lower edge (MHz) Upper edge (MHz) 2 54 60 3 60 66 4 66 72 5 76 82 6 82 82 88 7 174 180 8 180 186 9 186 192 10 192 198 11 198 204 12 204 210 13 210 216 (a) Calculate the broadcast wavelength range for channel 2. (Enter your answers from smallest to largest, in m.) smallest value m largest value m (b) Calculate the broadcast wavelength range for channel 4. (Enter your answers from smallest to largest, in m.) smallest value largest value m m (c) Calculate the broadcast wavelength range for channel 6. (Enter your answers from smallest to largest, in m.) smallest value…arrow_forwardA 25-W incandescent light bulb radiates uniformly in all directions. (a) Calculate the average intensity 2.1 m from the bulb. lavg @ 2.1 m = W/m² (b) What is the average intensity 4.5 m from the bulb? lavg @ 4.5 m = W/m²arrow_forward
- An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 12.0 W/m², and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPaarrow_forwardAn FM station broadcasts classical music at 96.0 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and ) of these radio waves.arrow_forwardSuppose a radio wave has a wavelength of 2.00 meters. What it the frequency of the radiation? It may be helpful to recall that v = AF for electromagnetic waves, while v = c = 3.00 × 108 m/s. Ο Α. 150 khz О В. 1.50 Mhz О С. 15.0 Мhz O D. 150 Mharrow_forward
- What features make radio waves useful for transmission? O They are not absorbed by the atmosphere and they move at the speed of light. O They are not absorbed by the atmosphere and they move fast, though under the speed of light. O They are absorbed by the atmosphere and they move fast, though under the speed of light. O They are absorbed by the atmosphere and they move at the speed of light.arrow_forwardThe average intensity of solar radiation reaching Earth's satellite orbit is 1360 W/m?. A satellite's solar panel with area 37.7 m? directly faces the sun and absorbs the entire solar radiation incident on it. What is the force the solar radiation exerts on the panel (in Newton)? Speed of light in vacuum c = 3.008 m/s Permittivity of vacuum &0 = 8.85B-12 F/m Permeability of vacuum No = 1.26E-6 T•m/Aarrow_forwardElectromagnetic waves, which include light, consist of vibrations of electric and magnetic fields, and they all travel at the speed of light, 3.00×108 m/s Part A: Sunburn (and skin cancer) is caused by ultraviolet light waves having a frequency of around 1.02×10^16 Hz. What is their wavelength? Part B: It has been suggested that extraterrestrial civilizations (if they exist) might try to communicate by using electromagnetic waves having the same frequency as that given off by the spin flip of the electron in hydrogen, which is 1.43 GHz. To what wavelength should we tune our telescopes in order to search for such signals? Part C: Microwave ovens cook food with electromagnetic waves of frequency around 2.45 GHz. What wavelength do these waves have?arrow_forward
- Determine the range of wavelengths in the microwave radiation band. O 1> 0.3 m 0.3 m > i > 3 × 10-4 m O 3 x 10-4 m > i > 7.5 x 10-7 m O 7.5 x 10-7 m > à > 4 x 10-7 O 4 x 10-7 m > i > 3 x 10-10 m O 1x 10-8 m > i > 1 x 10-11 m O a <1x 10-11 marrow_forwardA police officer's radar gun emits radio waves at a frequency of 10.9 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 55 mph speed limit and a car travelling 3 mph faster? Assume that the cars are both headed directly away from the stationary officer.arrow_forwardWhat is the frequency of a microwave in free space whose wavelength is 1.65 cm?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press 
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON