PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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visible light waves
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cosmic rays
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radio waves
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gamma rays
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Detailed explanation-1: -The gamma radiation region have the highest frequency. The radio wave region has the longest wavelength.
Detailed explanation-2: -Ultraviolet rays have higher frequencies than visible light, so they carry more energy. The energy of ultraviolet rays is great enough to damage or kill living cells. In fact, ultraviolet lamps are often used to kill bacteria on hospital equipment.
Detailed explanation-3: -The visible light frequency is 400 THz to 700 THz, approximately. A THz is a Terahertz, which is a unit of frequency equal to one trillion Hertz. The electromagnetic spectrum. The frequency increases as we move to the right.
Detailed explanation-4: -More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers.