PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When we talk about unguided media, usually we are referring to ____
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metallic wires
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nonmetallic wires
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the atmosphere
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optical fibers
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Explanation:
Detailed explanation-1: -An unguided transmission transmits the electromagnetic waves without using any physical medium. Therefore it is also known as wireless transmission. In unguided media, air is the media through which the electromagnetic energy can flow easily.
Detailed explanation-2: -Examples of unguided medium is include microwave, radio or infrared. Coaxial cable comes in guided medium. Option 3 is correct answer.
There is 1 question to complete.