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As shown in below figure, the attenuation of an optical fiber line with the length of...

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Electrical Engineering

As shown in below figure, the attenuation of an optical fiberline with the length of 12 km is 2.5 dB/km. The radius of the fibercore is 5 μm. If the optical power at the input of the fiber is 300μW, what is the output INTENSITY at the output of the fiber?

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