A woman is listening to her radio, which is 178 m from the radio station transmitter. (a) How many wavelengths of the radio waves are there between the transmitter and radio receiver if the woman is listening to an AM radio station broadcasting at 1100 kHz? wavelengths (b) How many wavelengths are there between the transmitter and radio if she changes to an FM station broadcasting at 96.9 MHz? wavelengths

A woman is listening to her radio, which is 178 m from the radio station transmitter. (a) How many wavelengths of the radio waves are there between the transmitter and radio receiver if the woman is listening to an AM radio station broadcasting at 1100 kHz? wavelengths (b) How many wavelengths are there between the transmitter and radio if she changes to an FM station broadcasting at 96.9 MHz? wavelengths

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 98AP: A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of...

See similar textbooks

Similar questions

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?
A physicist drives through a stop light. When he is pulled over, he tells the police officer that the Doppler shift made the red light of wavelength 650 nm appear green to him, with a wavelength of 520 nm. The police officer writes out a traffic citation for speeding. How fast was the physicist traveling, according to his own testimony?
Figure 24.26 shows the interference pattern of two radio antennas broadcasting the same signal. Explain how this is analogous to the interference pattern for sound produced by two speakers. Could this he used to make a directional antenna system that broadcasts preferentially in certain directions? Explain. Figure 24.26 An overhead view of two radio broadcast antennas sending the same signal, and the interference pattern they produce.
It takes 3.8 x 10^-5 s for a pulse of radio waves from a radar to reach a plane and bounce back.How far is the plane from the radar? Please include the computation please
Two microwave frequencies are authorized for use in microwave ovens, 895 and 2530 MHz. Calculate the wavelength (in cm) of each. a) _____ cm (frequency = 895 MHz) b) _____ cm (frequency = 2530 MHz) Which frequency (in MHz) would produce smaller hot spots in foods due to interference effects?
An important news is being broadcast inside a newsroom of a television, station. The news is to e transmitted by radio waves. The distance of the person watching from the station’s transmitter is 1.32 × 106 m. How long will take the news to reach a person watching the television? Select one: a. 0.44 × 10-3 s b. 4.04 × 10-3 s c. 0.04 × 10-3 s d. 4.4 × 10-3 s
A newly-purchased cell phone in your left hand transmits radio waves with frequency 800 MHz. How does the wavelength of these waves compare with waves of visible light with frequency of 5 x 108 MHz ? A.) radio waves are longer and travel more slowly B.) radio waves are longer and travel faster C.) radio waves are shorter and travel more slowly D.) radio waves are longer and travel at the same speed E.) radio waves are shorter and travel at the same speed
A microwave oven uses 2.4 GHz electromagnetic waves. A cell phone uses electromagnetic waves at a slightly lower 1.9 GHz frequency. What can you say about the wavelengths of the two?A. The waves from the oven have a longer wavelength.B. The waves from the phone have a longer wavelength.C. The waves from the oven and the phone have the same wavelength.
In order to maximize power, most broadcast antenna have a length that is 1/4 of the wavelength of the electromagnetic waves being transmitted. If a broadcast antenna is 16 m long, what is the frequency of its transmitted waves? f = Hz
A monochromatic (i.e., single frequency) beam of light travels from material #1 into material #2, where n1 > n2. What is/are the relationships between the wave speeds and wavelengths of the beam in the two materials? Choose any one or more options that apply: 1. v1 < v2 2. λ1 < λ2 3. v1 = v2 4. λ1 = λ2 5. λ1 > λ2 6. v1 >v2
Two microwave frequencies are authorized for use in microwave ovens, 880 and 2550 MHz. Calculate the wavelength (in cm) of each. cm (frequency = 880 MHz) cm (frequency = 2550 MHz) (b)Which frequency (in MHz) would produce smaller hot spots in foods due to interference effects? MHz
The 21-cm line of atomic Hydrogen is very common throughout the Universe that some scientists suggest that if we want to send messages to aliens we should use the frequency of π times this frequency (why?). What is the frequency they suggest to use? A. 4.49 GHz B. 1.43 GHz C. 2.75 GHz D. 3.62 GHz Is the answer B? The use of frequency π times is to avoid destructive interference such that the radio message could travel through space without distortion? Thank you very much!