Banknotes type em waves

7210 best questions for Banknotes type em waves

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☑️ What type of em waves do cell phones use?

  • The type of electromagnetic waves mobile phones use is called radio frequency (RF) waves/fields, and in particular about 900 Mhz up to 2100 MHz. They also use Code division multiple access methods to squeeze all that chat into the bandwidth.

☑️ What type of em waves are used in camera autofocusing?

Autofocusing is usually based on infra red radiation.

☑️ How are em waves like ocean waves?

With any wave, you get some quantity which goes up and down in a smooth manner which mathematically can be described as a sine wave (after the trigonometric function). In an ocean wave, it is water that goes up and down. In an electromagnetic wave, it is the electric and magnetic fields which go up and down.

☑️ How are em waves produced?

  • Electro magnetic waves are produced when an alternating current is coupled through an antenna for transmission. EM waves have both an electric component and a magnetic component.

☑️ Do em waves have pressure?

A much less familiar feature of electromagnetic radiation is the extremely weak pressure that electromagnetic radiation produces by exerting a force in the direction of the wave. This force occurs because electromagnetic waves contain and transport momentum.

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Video answer: Light is waves: crash course physics #39

Light is waves: crash course physics #39

Video answer: Wave motion | waves | physics | fuseschool

Wave motion | waves | physics | fuseschool

Video answer: Jee mains: electromagnetic waves - l 1 | iit jee physics | unacademy jee | jayant sir

Jee mains: electromagnetic waves - l 1 | iit jee physics | unacademy jee | jayant sir

Video answer: Transverse and longitudinal waves | gcse physics | doodle science

Transverse and longitudinal waves | gcse physics | doodle science

Top 7190 questions from Banknotes type em waves

We’ve collected for you 7190 similar questions from the «Banknotes type em waves» category:

What is red light in em waves?

The wavelength is the distance from one wave crest to the next, and is represented by the Greek letter lambda, λ. Violet light is electromagnetic radiation with wavelengths of 410 nanometers and red light has a wavelength of 680 nanometers.

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Why are em waves are non-mechanical?

Non-mechanical waves are waves that do not require a medium for the transfer of their energy to occur. Electromagnetic waves are the only type of non-mechanical waves. They can travel through the vacuum of space. Light from distant stars travel hundreds of thousands of millions of years to reach us.

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Can all em waves travel through space?

Yes, all electromagnetic waves can travel through a vacuum. (i.e space) (a note, sound waves are not part of the EM spectrum and cannot travel through a vacuum, because they rely on causing vibrations/movement of mass, which is not present in empty space.)

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Which em waves has the highest frequency?

X-rays

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What are some examples of em waves?

  • Electromagnetic waves can be split into a range of frequencies. This is known as the electromagnetic spectrum. Examples of EM waves are radio waves, microwaves, infrared waves, X-rays, gamma rays, etc.

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What are the properties of em waves?

  • Properties of EM Waves. EM waves are transverse waves, consist of electric and magnetic waves at right angles to each other and to the direction of wave propagation. They transfer energy from one place to another. They can travel through vacuum as they do not require a medium to propagate.

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Are all em waves forms of light?

The electromagnetic spectrum describes all of the kinds of light, including those the human eye cannot see… Other types of light include radio waves, microwaves, infrared radiation, ultraviolet rays, X-rays and gamma rays — all of which are imperceptible to human eyes.

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Which em waves have the longest wavelenghts?

Radio waves

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Em waves with the highest frequency are?

Gamma rays.

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Which em waves have the fastest velocity?

All electromagnetic waves travel at the same speed, the speed of light. This is about 186,000 miles per second, or about 300,000 km per second.

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Which em waves are dangerous and why?

In general, electromagnetic waves get more and more dangerous the shorter their wavelength: Radio waves have no known harmful effects whilst gamma rays can cause cancer and are regarded as extremely dangerous.

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What can em waves transfer energy through?

  • In electromagnetic waves,energy is transferred through vibrations of electric and magnetic fields.
  • In sound waves,energy is transferred through vibration of air particles or particles of a solid through which the sound...
  • In water waves,energy is transferred through the vibration of...

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What is a type of em wave?

visible light

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What type of wave is em radiation?

EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.

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Is the lowest frequency type em wave?

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.

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What type of mechanical waves are water waves?

Surface wave APEX

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Why are they referred to as em waves?

Description: Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. They are hence known as 'electromagnetic' waves… They are also perpendicular to the direction of the EM wave. EM waves travel with a constant velocity of 3.00 x 108 ms-1 in vacuum.

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Why do we call em waves x rays?

  • Given the high energy of the electron, these EM waves can have high energy. We call them X-rays. Since the process is random, a broad spectrum of X-ray energy is emitted that is more characteristic of the electron energy than the type of material the electron encounters.

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Which em waves are used in wireless technology?

  • It uses electromagnetic waves such as RF, IR, satellite, etc. While wireless communication is not limited to smartphones, you can also use this technology to connect different devices to the Internet at home or office wirelessly. So wireless technology has changed a lot and it is still changing things for good.

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How to calculate the transmission of em waves?

  • Medium 1 Medium 2 H 1=Hi+Hr H 2=Hr Medi um 1 Medium 2 Reflection of EM Waves at Boundaries E 1(z=0)=E2(z=0) H 1(z=0)=H2(z=0) η=

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What is the relationship between various em waves?

wave

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Why are gamma rays not considered em waves?

  • Alpha and beta particles (and positrons and the like) are not EM waves not because they are charged and capable of being deflected by a magnetic field, but because they are simply particles with mass and volume—they are not pure energy as a photon is. That is what a gamma ray ‘particle’ is—a photon, or quantum of light energy.

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Energy emitted in the form of em waves?

Electromagnetic wave is a form of radiation.

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What are the 7 uses of em waves?

  • Radio waves: Communication.
  • Microwaves: Heating and data transmission.
  • Infrared waves: Used in remote control and imaging applications.
  • Visible light: Help us see everything around us.
  • Ultraviolet Waves: Useful in the study of galaxies.

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Do em waves need a medium to propagate?

  • Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate . This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

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Which two em waves are the most dangerous?

Ultraviolet (UV) (Wavelength 10-7 - 10-8 meters)

UV-C rays are the most harmful and are almost completely absorbed by our atmosphere. UV-B rays are the harmful rays that cause sunburn.

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Why are there different types of em waves?

  • There are different types of EM waves with different wavelengths in which energy transferred increases as the wavelength shortens. Moving along the spectrum of EM waves, microwaves and infrared waves have longer wavelengths, hence are of relatively lower energy, than gamma rays and X-rays.

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What includes the entire range of em waves?

various set of wavetoo many in deedyou can cut down half and you ll not notice any problem

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How are radio waves and television signals added to em radio waves?

by changing the amplitude or frequency of the radio waves.

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What type of em wave is the shortest?

The shortest wave is a Gamma wave

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What type of wave is an em wave?

Electromagnet

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What type of em wave raditiation is a type of heat wave?

Heat radiation is mainly associated with infrared radiation.

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What type of waves are sound waves class 8?

Sound waves are longitudinal waves. This means that the propagation of vibration of particles is parallel to the energy wave propagation direction.

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Which of the em waves has the highest energy?

which em wave is the highest energy wave

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How are electromagnetic waves categorized in the em spectrum?

  • The EM spectrum Electromagnetic waves are categorized according to their frequency f or, equivalently, according to their wavelength λ = c/f. Visible light has a wavelength range from ~400 nm to ~700 nm. Violet light has a wavelength of ~400 nm, and a frequency of ~7.5*10 14 Hz.

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What do you mean by polarisation of em waves?

That's the direction in which the ' E ' field of the wave points. It's always perpendicular to the direction in which the wave is traveling. But it could be horizontal, vertical, or any angle in between.

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How are transmission and reflection of em waves defined?

  • Normal Incidence transmitted wave Medium 2 H E Medium 1 Reflection & Transmission of EM Waves at Boundaries E 1=Ei+ErE 2=Et Medium 1 Medium 2 H 1=Hi+Hr H 2=Hr Medi um 1 Medium 2 Reflection of EM Waves at Boundaries E 1(z=0)=E2(z=0) H 1(z=0)=H2(z=0) η= μ Reflectivity & Transmissivity of Waves • Define the reflection coefficientas

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What happens when em waves encounter a material medium?

The energy in the wave is partly transmitted, partly absorbed, and partly reflected.

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How are em waves related to the electromagnetic spectrum?

  • EM waves and the electromagnetic spectrum. Electromagnetic (EM) waves are transverse waves. Their vibrations or oscillations are changes in electrical and magnetic fields at right angles to the direction of wave travel. All electromagnetic waves:

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What type of waves carry sound?

Longitudnial waves (or pressure waves).

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What type of waves have amplitude?

  • Transverse mechanical waves (for example, a wave on a string) have an amplitude expressed as a distance (for example, meters), longitudinal mechanical waves (for example, sound waves) use units of pressure (for example, pascals), and electromagnetic waves (a form of transverse vacuum wave) express the amplitude in terms of its electric field (for example, volts/meter).

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What type of waves are there?

p-wave s-wave l-wave

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What type of waves disturb matter?

Psionic

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What type of waves is light?

Einstein called these energy packets photons, and these are now recognised as a fundamental particle. Visible light is carried by photons, and so are all the other kinds of electromagnetic radiation like X-rays, microwaves and radio waves. In other words, light is a particle.

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What type of waves are tsunamis?

As a result of their long wave lengths, tsunamis behave as shallow-water waves. A wave becomes a shallow-water wave when the ratio between the water depth and its wave length gets very small.

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What type of waves are heat?

Infrared radiation is what we like to describe as heat. We can't see infrared waves, but we can feel them. Your body gives off heat, so it is an emitter of infrared radiation.

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What type of waves are fastest?

Electromagnetic waves are the fastest waves. The fastest seismic waves (a type of mechanical wave that travels through the Earth) is the Primary or P-wave.

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What type of waves are longitudinal?

  • sound waves.
  • ultrasound waves.
  • seismic P-waves.

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What type of em wave has the highest frequency?

The ones we call "gamma rays" do. Their frequency is so high that in the time of one cycle, light travels only a distance similar to the size of an atom.

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Which type of em wave has the highest energy?

Gamma rays

Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum.

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