ऑप्टिकल फाइबर का आविष्कार नरिंदर कपनी ने किया.
Optical Fibar par km dB loss
Phaever ka aviskar kab Hua tha
Narinder kapani
Hi
Optical fibre cable ke aviskark kon hai
Optical Fibre ka aviskar kisne kiya tha aur Kab Hua uska naam kya hai aur Bharat Mein Kab Hua
Q 1. Bharat me optical fibre lab aayi ?
Q2.
नरेंद्र कापानी
Faibar
H
Amit
Fibre root name
Fibre opticals ka aviskar kisne kiya
Fiber optics Ka aavishkar kisne Kiya ?
gk pdf milege
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Who Discovered the fiber and what is name.