Question

question 8 of 10

which electromagnetic wave is used in optic fibre cables?

visible light
ultraviolet
radio waves
infrared

Explanation:

Identify the core technology

Optic fiber cables transmit data as light pulses.

Analyze wave propagation in glass

Using the Electromagnetic Spectrum concept, we evaluate which waves travel best through silica glass fibers.

Compare attenuation and absorption

Infrared light experiences the lowest attenuation (signal loss) in glass fibers.

Determine the correct wave type

Infrared waves are standard for telecommunications in optical fibers.

Answer:

• Visible light
• Ultraviolet
• Radio waves
• Infrared (Correct answer)