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

Q: 1.Radar is used to determine distances to various objects by measuring the round-trip time for an…

A: Given: Echo time = 1000 s Formula used: speed=distancetime Speed will be of speed of light. Distance…

Q: 1.Radar is used to determine distances to various objects by measuring the round-trip time for an…

A: Given a Radar is used to determine distances to various objects by measuring the round-trip time for…

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

A: Given, speed of french submrine vF speed of us submrine vUS The French sub sends out frequency f…

Q: Choose the BEST answer to the following: Your friend states that under all conditions, any radio…

A: Radio wave is an electromagnetic wave with low frequency and it is transverse in nature. Sound wave…

Q: A police officer's radar gun emits radio waves at a frequency of 10.5 GHz. What is the difference in…

A:

Q: What is the difference between mechanical wave and Electromagnetic wave. Also why does the…

A: Mechanical waves are a type of wave that transfer energy through medium by oscillating medium…

Q: An electromagnetic wave is shown in the figure. In what direction is the wave propagating (moving)?…

A: Given, Direction of electric field, E=i Direction of magnetic field, B=-k

Q: An FM radio station broadcasts at 101.1 MHz. a) What is the wavelength of the waves it produces?…

A:

Q: What is the wavelength of an FM radio station that broadcasts at 101.1 MHz?Assume speed of light c =…

A: Given: The frequency is f=101.1 MHz. The speed of light is c=3X108 m/s. The expression for…

Q: Suppose a star is 7.61 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…

A:

Q: What is the definition for "wave" in relation to the electromagnetic spectrum? O a hand motion; an…

A: To explain : The definition for "wave" in relation to the electromagnetic spectrum

Q: A Whirlpool Microwave oven uses light with a wavelength of 86.98 cm to cook your food. What is the…

A: Given, Wavelength of microwave light λ=86.98 cm=86.98×10-2 m   We know the expression for wavelength…

Q: Different forms of light are due to?   A. Different frequencies of electromagnetic waves.   B. A…

A:

Q: When Mars is 90 million km from Earth, a) How long would it take for a radio wave from a video…

A: distance of mars from earth = 90 million km = 9×1010 m speed of electromagnetic waves = 3×108 ms

Q: A radio station broadcasts at 650 kHz (650,000 cycles per sec).  What is the wavelength of this…

A:

Q: A fighter jet is traveling at 515 m/s directly away from a communication antenna that broadcasts at…

A: Vo=515 m/s fo= 406 x 106 hz

Q: Calculate the frequency and energy of blue light that has a wavelength of 400nm.

A: Given that :- Wavelength λ = 400 nm Thus we can find frequency ν of the blue light as below-…

Q: Radio waves are widely used in communications industry. Aside from mobile phones that use radio…

A: Uses of Radio waves-  a. Radio waves are used in RADAR(RAdio Detection And Ranging)  b. Radio waves…

Q: An electromagnetic wave of frequency 4.4 x 1012 Hz propagates with speed 0.89c. Calculate the…

A: Given data:  Frequency (f) = 4.4×1012 Hz Speed of wave (v) = 0.89c c = speed of light in vacuum =…

Q: What is the value for the constant for the speed of light

A:

Q: What is an electromagnetic wave? Describe its main features by using diagrams as appropriate

A:

Q: Mars is roughly 200 million km (or 140 million miles) away from the Earth. Roughly how long does it…

A: According to question---- Given data  --  Distance from Earth = 200 million km. We have to find-…

Q: A police officer's radar gun emits radio waves at a frequency of 10.9 GHz. What is the difference in…

A: given,f0=10.9 GHzv=55 mphv'=3 mph

Q: Do radio waves travel at the speed of sound or at the speed of light? Explain.

A: Radio waves are electromagnetic waves.

Q: An FM radio station transmits at a frequency of 100 MHz. What is the wavelength of these radio waves…

A: Given in question - Frequency of station (f) = 100 Mz To find - Wavelength of Radiowave (λ).…

Q: A police officer's radar gun emits radio waves at a frequency of 11.7 GHz. What is the difference in…

A: given that,f=11.7 GHzvr=45mphvr'=9 mph

Q: Cell phones pick up radio frequencies of approximately 1.85GHz (1.85x109 Hz). a. If the speed of…

A: Given data:  Frequency (f) = 1.85 GHz = 1.85×109 Hz Speed of light (c) = 3×108 m/s Required: The…

Q: he International Space Station (ISS)orbits Earth at an altitude of 422 km. (a) What is its orbital…

A: Given data: The altitude of ISS is: r = 422 km The radius of the earth is: R = 6371 km The mass of…

Q: How is wave speed v, related to wavelength λ, and frequency f? What is the wavelength of a 0.44 KHz…

A: Given, Frequency, f=0.44 kHz=440 Hz.

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

A: given:speed of french submarine = vFspeed of US submarine = vUSfrequency of sonar signal = fspeed of…

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

A: The frequency of the sound heard by an observer differs from the original frequency if the source…

Q: Which type of waves travel the fastest? Radio waves Microwaves All have the same speed. Gamma rays…

A: The wavelength of a wave is defied as the distance between two consecutive crests or two consecutive…

Q: What is an electromagnetic wave? How are electromagnetic waves related to the field of light? How…

A:

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

A: Given: The velocity of the french sub-marine is vF. The velocity of the U.S submarine is vUS. The…

Q: Astronomers use a​ light-year to measure distance. A​ light-year is the distance light travels in…

A: Speed=Distance/Time V=S/t 1 year=365days=365x24x3600=31536000s

Q: A distant galaxy is moving away from the Earth. (a) Is the speed of the light we seefrom the galaxy…

A: Finding the answer.

Q: he radio waves that travel through the air to our car/truck/home radios are just another type of…

A: We know that, V=fλ where V=speed f=frequency λ=wavelength Refractive index=n=C/V where C =speed of…

Q: A police officer's radar gun emits radio waves at a frequency of 10.5 GHz. What is the difference in…

A: The difference in the frequencies is 31.36Hz.

Q: What is the range of frequencies used for TV transmission? What is common between these waves and…

A: Range of frequency is the frequency domain's interval having bounded upper and lower frequencies.…

Q: A police officer's radar gun emits radio waves at a frequency of 11.7 GHz. What is the difference in…

A: given,f0=11.7 GHzv=45 mphv'=9mph

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.