A cell phone operates at a frequency of 700MHz. What is the wave length of the waves produced as this cell phone send a signal through the air at 20 degrees C to a local cell phone tower? I got .42 m/wave but not sure I set up the equation correctly. Thanks.

A cell phone operates at a frequency of 700MHz. What is the wave length of the waves produced as this cell phone send a signal through the air at 20 degrees C to a local cell phone tower? I got .42 m/wave but not sure I set up the equation correctly. Thanks.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 103AP: Radar is used to determine distances to various objects by measuring the round-trip time for an echo...

See similar textbooks

Related questions

Q: In this problem, I am suppose to manipulate the equation to find what r equals to. Thank you.

A: Given:

Q: 1. Calculate the velocity of a wave that has a frequency of 40 Hz and a wavelength of 400 meters. (…

Q: Find the wavelengths of electromagnetic waves with the following frequencies. (Assume the waves are…

A: Frequencies in the given question; f1=4×1019 Hz f2=6×109 Hz Speed of light in vacuum (c)=3×108 m/s

Q: A monochromatic (i.e., single frequency) beam of light travels from material #1 into material #2,…

A: Refractive indices n1>n2

Q: A source of electromagnetic waves radiates power uniformly in all directions at a single frequency.…

Q: A meteorologist for a TV station is using radar to determine the distance to a cloud. He notes that…

Q: Which of the following is true for electromagnetic waves? (a) They have different speeds in vacuum…

A: To find the correct statement

Q: 2. The human eye is sensitive to light with wavelength down to 390 nm. What is the frequency of…

Q: Radio waves travel at the speed of light, 3.0 x 108 m/s. The wavelength of a radio wave received at…

Q: 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…

A: Given data: The time taken for a pulse of radio waves from a radar to reach a plane and bounce back…

Q: a French submarine and a U.S. submarine move toward each other during maneuvers in motionless water…

Q: CHECКРО Choose the letter that corresponds to the correct answer. 1. Which of the following is not…

A: Answer 1) Electromagnetic wave is a transverse wave So option a is true Electromagnetic wave are…

Q: A guitar string has a length of 1.10 m and a mass of 9.00 g. What voltage must be applied to the…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The antenna for an AM radio station is a 69.5-m-high tower whose height is equal to one-quarter the…

A: Given, Height h = 69.5 m

Q: If two light rays one has wavelength A = 680 nm and the other one has wavelength опе 2=530 nm. 6. a)…

Q: A sound wave and a radio wave, both travelling in air, have the same frequency. Which of the…

A: Radio waves are electromagnetic waves and sound waves are mechanical waves. An electromagnetic wave…

Q: What is the wavelength of an FM radio signal if the number on the dial reads 99.7 MHz? The speed of…

A: The wave speed (v) is defined as the distance traveled by a wave per unit time. Speed v = λ/T…

Q: The speed of light in air is approximately v = 3.00 × 108 m/s and the speed of light in glass is v =…

Q: Given c = 入v in a vacuum where c is the speed of light, 入 is the wavelength and v is the frequency.…

A: Given:Relation is given c=vλ where c is speed of light, v is frequency and λ is wavelengthTo Find:1.…

Q: The wavelength of some green light is 530.0 nm. What is the frequency of this green light

Q: What are the wavelengths of (a) X-rays of frequency 2.0 × 1017 Hz? (b) Yellow light of frequency 5.1…

A: a. the wavelength of x ray is λ=cf=3×108 m/s2×1017 Hz=1.5×10-9 m

Q: The Sun radiates energy at a rate of 3.86x 1026 w. Its radius is 7.0x 10° m. If the distance from…

A: The radiation intensity is defined as the amount of energy emitted per unit solid angle by per unit…

Q: 9. An electromagnetic wave with frequency 1.0 X 107 Hz and wavelength 30 m should be classified as a…

A: Given wavelength 30 m and frequency 1.0*107Hz

Q: The crew of a ship going 35.4 m/s towards a distress beacon hears a frequency of 11khz. What is the…

Q: Find the wavelengths of electromagnetic waves with the following frequencies. (Assume the waves are…

A: Since the waves are travelling in the vacuum, the relation between the wavelength and the frequency…

Q: A spaceship is approaching a space station at a speed of 2.00 × 10° m/s. The space station has a…

A: (a) The frequency of the beacon observed on the spaceship is fs=f0cc-v=5.97×1014Hz2.9979×108…

Q: A radar pulse returns to the receiver after a total travel time of 9.00 x 10-4 s. How far away is…

A: Generally the speed of radar pulse is equal to the speed of light i.e c=3*108 ms-1 Let’s assume…

Q: ch statement is not true about light? It is an electromagnetic wave. It travels in vacuum at 3 x…

A: light It is an electromagnetic wave

Q: he red light emitted by a helium-neon laser has a wavelength of 632.8 mm. What is the frequency of…

A: Given: The wavelength of red light is 632.8 nm.

Q: 20. A listener traveling at %v (v is the speed of sound) and a source (emitting a 1.50 kHz sound)…

Q: An electromagnetic wave is travelling from vacuum to a salt solution with relative permeability…

Q: 8) A 1.69x10 Hz electromagnetic wave propagates in carbon tetrachloride with a speed of 2.21x10*.…

A: a) The expression for find index of material is n=cv Substitute values in the above equation…

Q: A 0.50-mW laser produces a beam of light with a diameter of1.5 mm. (a) What is the average intensity…

A: d=Diameter of beam=1.5 mmr=Radius of beam=1.52=0.75 mmP=Power of beam=0.5 mW

Q: A light wave and sound wave travelling through air both have the same frequency (4000Hz). Which wave…

A: Velocity of wave is characterised in terms of its frequency and wavelength . Frequency of light wave…

Q: (a) A moving neutron has a wavelength of 5.29 x 10- m. What is its speed (in m/s)? m/s (b) A neutron…

A: (a) Given, Wavelength of neutron λ = 5.29×10-7m To find The velocity of the neutron, Use De…

Q: 1. electromagnetic waves are produced by? 2. in the electromagnetic wave, the direction of…

A: EM waves are another term for electromagnetic waves. When an electric field collides with a magnetic…

Q: Radio waves transmitted through space travel at 3.00 x 10$ m/s. If their wavelength is 0.240 m, what…

Q: The electric field of a uniform plane wave propagating in a dielectric, non-conducting medium is…

A: Phase velocity is the velocity of the phase of wave. The velocity with which the wave moves is the…

Q: When you go out into the sun, the UV light can give you a tan. UV light has a frequency of 7.89 x…

A: Write the given values of the problem- frequency of the UV light(f) f=7.89×1014 Hz Speed of the…

Q: What is the frequency of blue light that has a wavelength of 453 nm? the answer might have to be in…

A: Solution: Given that: blue light that has a wavelength of 453 nm ie λ = 453 nm = 4.53 x 10-7 m…

Q: What is the intensity in W/m2 of a laser beam used to burn away cancerous tissue that puts 374 J…

A: To determine,The intensity(I) in Wm-2 of a laser beam.given,Energy of laser beam(E)=374 Jdiameter…

Q: The intensity of sunlight at the top of the earth’s atmosphere is approximately 1400 W/m2. Mars is…

A: The magnitude of intensity varies as the inverse of square distance to the source: I∝1r2 I=Kr2…

Q: What is the intensity of a 100 -W light bulb at a distance 10 cm from the bulb's center? (in units…

Question

A cell phone operates at a frequency of 700MHz. What is the wave length of the waves produced as this cell phone send a signal through the air at 20 degrees C to a local cell phone tower?

I got .42 m/wave but not sure I set up the equation correctly. Thanks.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object, (a) How far away is the planet Venus if the echo time is 1000 s? (b) What is the echo time for a car 75.0 m from a highway police radar unit? (c) How accurately (in nanoseconds) must you be able to measure the echo time to an airplane 12.0 km away to determine its distance within 10.0 m?
The distance between Planet X and a star is 1.8 x 1011 m. At the surface of Planet X, the average intensity of the radiation from the star is 13440 W/m2. If the star radiates isotropically, which of the following is the average power of the star? a. 7.64 x 1024 W b. 5.47 x 1027 W c. 9.69 x 1026 W d.4.95 x 1028 W
The Earth is 1.49 × 1011 meters from the sun. If the solar radiation at the top of the Earth's atmosphere is 1 340 W/m?, what is the total power output of the sun? 7.10 x 1027 W b. 2.20 x 1030 W а. c. 6.62 x 1026 W d. 3.74 x 1026 W 2.98 x 1025 W е.
A pulsar is a type of rotating neutron star that emits a beam of electromagnetic radiation. Imagine a pulsar that is moving toward Earth at a speed of 875.500 km/s. It emits mostly radio waves with a wavelength (at the source) of 124.000 cm. What is the observed wavelength of this radiation on Earth? (Assume the Earth is stationary. Consider the speed of light c = 3.00000 108 m/s. Give your answer to at least six significant figures.)______________ cm
A pulsar is a type of rotating neutron star that emits a beam of electromagnetic radiation. Imagine a pulsar that is moving toward Earth at a speed of 743.000 km/s. It emits mostly radio waves with a wavelength (at the source) of 137.000 cm. What is the observed wavelength of this radiation on Earth? (Assume the Earth is stationary. Consider the speed of light c = 3.00000 x 108 m/s. Give your answer to at least six significant figures.) 4.0 cm Additional Materials
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 5.50 km from the source, a detector measures the intensity of the wave to be 26.0 μμW/m2. What is the average power radiated by the source?
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.
An electromagnetic wave is travelling from vacuum to a salt solution with relative permeability ?? = 1.25. If the speed of propagation of the electromagnetic wave in the salt solution is one-third of its speed in vacuum, what is the permittivity of the salt solution?a. 2.12 × 10−11 F/mb. 6.37 × 10−11 F/mc. 7.08 × 10−12 F/md. 7.87 × 10−13 F/m
The Earth has a radius of 6.38 x 106 m and is 1.50 x 1011 m from the Sun. The intensity of sunlight at the Earth is 1370 W/m2. a) At what rate does the Sun radiate energy? (This is the total power radiated by the Sun.) b) A solar sail is a large perfect reflector that gets pushed by the Sun's radiation. If there is a 2.5 km x 25. km solar sail that is perpendicular to the sun's radiation at the Earth's distance from the Sun, then what is the total radiation force of sunlight on the sail? c) What is the intensity of sunlight at Jupiter at a distance of 7.78 x 1011 m from the Sun?
Consider electromagnetic waves in free space. What is the wavelength of a wave that has the following frequencies? (a) 4.24 x 10¹¹ Hz (b) m 8.28 x 10¹6 Hz m
Problem 1. A geostationary satellite is located 36,000 kilo- meters (km) away from the surface of the Earth. Once a minute it takes a digital picture and transmits the data to a base station on Earth. The rate of transmission is 10 Mbps and the propogation speed is 3.0 × 108 m/s. You may assume the actual time required to take the picture is negligible. a. What is the propagation delay of the link? b. The bandwidth-delay product is defined to be Rxdprop where dprop is the propagation delay. Calculate the bandwidth-delay product Rxdprop where deprop is the propagation delay. c. Let x denote the size of the picture in bits. What is the minimum value for x so that the satellite is continuously transmitting data over the link?
The speed of all empty space is 3.00 × 108 m/s. electromagnetic waves in a) What is the wavelength of radio waves emitted at 98.9 MHz? Answer in units of m. b) What is the wavelength of visible light emitted at 5.9 × 108 MHz? Answer in units of m. c) What is the wavelength of X rays emitted at 3.1 x 10¹2 MHz? Answer in units of m.