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Frequency spectrum

Why do electromagnetic waves have different frequencies?

1 April 2022 Enpatika.com Genel

They only differ from each other in wavelength . Wavelength is the distance between one wave crest to the next. Waves in the electromagnetic spectrum vary in size from very long radio waves the size of buildings, to very short gamma-rays smaller than the size of the nucleus of an atom.

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Why electromagnetic spectrum is important in astronomy?

1 April 2022 Enpatika.com Genel

Discovered more than a century ago, the electromagnetic spectrum is the basis on which our universe operates . Without it we wouldn’t be able to see, stars wouldn’t shine, and life would not exist. It is one of the most important principles that governs everything around us.

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How is the electromagnetic spectrum used in space?

1 April 2022 Enpatika.com Genel

Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas .

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What is the difference between L band and C-band?

1 April 2022 Enpatika.com Genel

L-band, or long band, is a wavelength band immediately adjacent to the Conventional band (C-band) initially used to expand the capacity of terrestrial DWDM optical networks. It is now being introduced to submarine cable operators to do the same thing—expand the total capacity of a submarine cable.

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What will C-band be used for?

1 April 2022 Enpatika.com Genel

C-band is currently used for the “satellite downlink ” for broadcast television distribution.

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What electromagnetic frequency is harmful to humans?

1 April 2022 Enpatika.com Genel

Most mobile operators use from radiofrequency waves in the range up 300 MHz to 3 GHz that can be harmful for human health (1).

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What causes electromagnetic frequency?

1 April 2022 Enpatika.com Genel

Electromagnetic radiation is produced whenever a charged particle, such as an electron, changes its velocity —i.e., whenever it is accelerated or decelerated. The energy of the electromagnetic radiation thus produced comes from the charged particle and is therefore lost by it.

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