SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) General Knowledge Science Technology and Inventions

Who invented optical fibre?

1
Samuel Cohen
2
Narinder Kapany
3
P. L. Spencer
4
T. H. Maimah
Share: WhatsApp Telegram X

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters