PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Wireless transmission of signals can be done via ____
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radio waves
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microwaves
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infrared
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all of the mentioned
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Explanation:
Detailed explanation-1: -Explanation: Wireless transmission is carried out by radio waves, microwaves and IR waves.
Detailed explanation-2: -Radio waves are used for wireless transmission of sound messages, or information, for communication, as well as for maritime and aircraft navigation. The information is imposed on the electromagnetic carrier wave as amplitude modulation (AM) or as frequency modulation (FM) or in digital form (pulse modulation).
Detailed explanation-3: -Radio waves are used by Wi-Fi to send signals and data over short distances.
There is 1 question to complete.