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Dahasolnce [82]
2 years ago
8

An optical fibre has an attenuation of 0.3 dB/km. If a laser launches an optical power level of PIN (mW) into 35 km length of th

is fibre, at what distances will the power have dropped to:
(a) 75%

(b) 50%

(c) 25%

(d) 12.5%

(e) 6.25%

of the input power level? Plot these points on a graph of P IN/P OUT versus distance along the fibre.
Computers and Technology
1 answer:
REY [17]2 years ago
6 0
I think it’s 75% sorry if it’s wrong :(
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