The computers in a network cannot be linked through
a. Infrared light beams
b. Ultra red light beams
c. Radio Waves
d. Telephone lines
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Answer:
infrared light beams
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INFRARED LIGHT BEAM
INFRARED LIGHT BEAMInfrared (IR) light is a type of electromagnetic radiation that lies between the visible end of the light spectrum, and the microwave spectrum (Vollmer and Mollmann, 2010). Its wavelength ranges from about 800 nm to 1 mm and it is emitted particularly by heated objects.
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