Two radio waves are used in the operation of a cellular telephone. To receive a call, the phone detects the wave emitted at onefrequency by the transmitter station or base unit. To send your message to the base unit, your phone emits its own wave at a differentfrequency. The difference between these two frequencies is fixed for all channels of cell phone operation. Suppose the wavelength ofthe wave emitted by the base unit is 0.34512 m and the wavelength of the wave emitted by the phone is 0.36718 m. Using a value of2.9979 × 108 m/s for the speed of light, determine the difference between the two frequencies used in the operation of a cell phone.Give your answer to four significant figures.Number iUnits

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Answered: Two radio waves are used in the…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 1OQ

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The 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 wave
What 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?
Remember the wave equation is y = lambda For electromagnetic waves traveling in a vacuum, they all travel at the speed of light =c=2.998*10^ 8 s/m. A water wave (a mechanical wave, not an electromagnetic wave!) has a frequency of 20 Hz and a wavelength of 0.1 m. Calculate the speed of this wave. 1/2 * m / s; 6m / s; 3m / s; 2m / s 4 m / s
The frequency range for AM radio is 540 to 1600 kHz. The frequency range for FM radio is 88.0 to 108 MHz. Part (a) Caculate the maximum AND minimum wavelength for AM radio in meters. Part (b) Caculate the maximum AND minimum wavelength for FM radio in meters.
Remember the wave equation is v = lambda For electromagnetic waves traveling in a vacuum, they all travel at the speed of light =c=2.998*10^ 3 sin A water wave (a mechanical wave, not an electromagnetic wavelhas a frequency of 20 Hz and a wavelength of 0.1 m. Calculate the speed of this wave 8m/s 6 m/s 1/2m/s 4 m/s
The speed of sound in air at room temperature is 343 m/s. What is the frequency of a sound wave in air with wavelength 1.71 m (in Hz)? What is the frequency of a radio wave with wavelength 1.71 m? (Radio waves are electromagnetic waves that travel at 3.00 × 108 m/s in air or in vacuum.)
The electric field of an electromagnetic wave traveling in vacuum is described by the following wave function:E= (5.00 V/m) cos [kx - (6.00x10^9 s^-1)t + 0.40] j where k is the wavenumber in rad/m, x is in m, t is in s.Find the following quantities:(a) amplitude(b) frequency(c) wavelength
A rescuer in an all-terrain vehicle (ATV) is tracking two injured hikers in the desert, each of whom has an emergency locator transmitter (ELT) stored in his backpack. The beacons give off radio signals at 121.5 MHz, in phase, and there is a receiver in the ATV that is tuned to that frequency. The speed of the radio waves is 3.00×108 m/s. The ATV is traveling due east, 2.00×102 m north of the hikers, and the hikers are 1.00×102 m apart. What is the spacing between the points at which the driver detects constructive interference between the two signals?
Which of the following is true for electromagnetic waves? (6.3)(a) They have different speeds in vacuum for different frequencies.(b) They are longitudinal waves.(c) They require a medium for propagation.(d) None of the preceding is true.
A microwave oven can heat 330 g of water from 25.0°C to 100.0°C in 2.60 min. The specific heat of water is 4186 J/kg·K. These microwaves pass through a waveguide of cross-sectional area 61.0 cm2. What is the average intensity of the microwaves in the waveguide? *need answer in W/m2*
What is the intensity in W/m2 of a laser beam used to burn away cancerous tissue that puts 374 J of energy into a circular spot 2.00 mm in diameter in 4.67 s? Compare this to the average intensity of sunlight (about 700 W/m2). answer blank times 10^7
The light intensity 4.4 m from a light bulb is 0.59 W/m^2. What is the power output of the bulb, assuming it radiates equally in all directions?

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