The cable over there, that's an optical fiber. वहाँ पर वो तार, वो एक ऑप्टिकल फाइबर है |
परिभाषा
a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images पर्याय: glass fiber, optical fibre, glass fibre,
मोबाइल