In the electromagnetic spectrum, the wave length region used for optical fiber communication is
Question and options
In the electromagnetic spectrum, the wave length region used for optical fiber communication is
- 0.8 µm−1.7 µm
- 3 cm−0.3 cm
- 0.3 nm−30 nm
- 3 cm−3 m
Answer and explanation
Correct answer: A - 0.8 µm−1.7 µm
Optical fibre communication uses near-infrared windows around 0.85, 1.3 and 1.55 micrometres, i.e. within 0.8-1.7 micrometres. The other ranges are microwave, X-ray/UV and radio.
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