Question

write down the importance of electromagnetic wave
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Answer 1

Explanation:

❥Answer

•Importance of electromagnetic wave.

Electromagnetic waves are used to transmit long/short/FM wavelength radio waves, and TV/telephone/wireless signals or energies. Theyare also responsible for transmitting energy in the form of microwaves, infrared radiation (IR), visible light (VIS), ultraviolet light (UV), X-rays, and gamma rays.

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Answer 2

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• The electromagnetic waves are sent and received for communication is discussed in Chapter 15. also produce a magnetic field. This effect is of great importance because it explains the existence of radio waves, gamma rays and visible light, as well as all other forms of electromagnetic waves.
• Everyday life is pervaded by artificially made electromagnetic radiation: food is heated in microwave ovens, airplanes are guided by radar waves, television sets receive electromagnetic waves transmitted by broadcasting stations, and infrared waves from heaters provide warmth.
• The most important of these is visible light, which enables us to see. Radio waves have the longest wavelengths of all the electromagnetic waves.

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