← General Knowledge 🟡 Medium 📋 TestPoint GK 5000 MCQs 2026

Who invented optical fiber?

Question #3757 of 400+ in General Knowledge

📝 Question #3757

Who invented optical fiber?

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All Options & Correct Answer

A Samuel Cohen
B Narinder Kapany
C Percy L.Spencer
D T.H. MaimahA B B. SAARC C. UNESCO A B C Ans Key Correct

📋 Question Details

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Subject
General Knowledge
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Difficulty
Medium
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Year
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TestPoint GK 5000 MCQs 2026

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