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10 March, 04:19

What type of electromagnetic radiation is used in communications devices such as cellular telephones?

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  1. 10 March, 06:28
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    Radio waves is the type of electromagnetic radiation, which is used in communication devices such as cellular telephones.

    Electromagnetic radiations are of many types which includes: Radio, Microwave, Infrared, Visible, Ultraviolet, X-rays and gamma rays, in which electric and magnetic field vary simultaneously. These rays or radiations are classified by wavelength.
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