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clc;
clear;
L=0.5 //length of the fibre in km
I_0=7.5*10^-6 //input power in Watt
I_t=8.6*10^-6 //output power in Watt
//calculation
alpha=-(10/L)*log10(I_0/I_t)
mprintf("The loss specification of the fibre is = -%1.1f dB/km",alpha)
//The answer varies dur to round off error.
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