Attenuation in optical fiber

[@doexperiment6433]

Good information sir

[@fahedshaikh6992]

👍👍👍

[@mukhtarbhai1591]

TQ sir.

[@vkumar8884]

hme kese milega benifit😅😅😅😅

[@nimithakv2229]

Thats not lambda its alpha🤦🤦🤦 and.....

[@royalflames6533]

Bhaii tu khud pehle theek se padhe

[@ChandanKumar-mz6lw]

Abey wo Alpha hai ,. Phi nhi