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An optical fibre communication system wo...

An optical fibre communication system works on a wavelength of `1.3 mu_(m)`. The number of subscribers it can feed if a channel required `20kHz` are

A

`2.3xx10^(10)`

B

`1.15xx10^(10)`

C

`1xx10^(5)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
b
Optical source frequency
`f=(c)/(lambda)=(3xx10^(8))/(1.3xx10^(-6))=2.3xx10^(14)Hz`.
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