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CBSE Class 12-science Answered

 Optical communication using fibres is performed in the frequency range of

Asked by jay7venture | 30 Aug, 2018, 08:09: PM
Expert Answer
Coaxial cable is a widely used medium, that offers a bandwidth of approximately 750 MHz.
These cables are usually operated below 18 GHz.
Communication via free space using radio waves takes place over a very wide range of frequencies, that is, from a few hundreds of kHz to a few GHz.
 
The below is the frequency range of some standard transmissions.
 

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