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Estimate the fastest bit rate capable of...

Estimate the fastest bit rate capable of being carried by light of wavelength 1.3 `mum`. How many phone calls could be carried at this bit rate? Band width of optical fibre =2 GHz.

A

more than 100 GHz

B

few kHz

C

less than 1 MHz

D

less than 1 GHz

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The correct Answer is:
A
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