In an optical fibre transmission, if the intensity of light becomes half of the light intensity at source (origin), Then the attenuation will be :
0.30 dB
3.01 dB
0.60 dB
6.02 dB
As we have learned
Attenuation (in dB) -
- wherein
[ in dB] are initial and final intensity
Attenuation in an optical fibre transmission is given by
Here given that
Thus attenuation =
Attenuation = 3.01 dB
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