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: Invention
ऑप्टीकल फाइबर का आविष्कार किसने किया? , Who invented optical fiber?
Who invented optical fiber?
A.
Samuel Cohen
सैमुएल कोहेन
B.
Narinder Kapani
नरिन्दर कपानी
C.
P.L.spencer
पी एल.स्पेन्सर
D.
T. H. Mimah
टी. एच. मइमाह
Solution
B. Narinder Kapani
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