Physics · Optics
ऑप्टिकल फाइबर के आविष्कार का श्रेय किसे दिया जाता है?
- 1थॉमस एडिसन
- 2नरिंदर सिंह कपानी✓
- 3परसी स्पेंसर
- 4सैमुअल कोहेन
सही उत्तर देखें
नरिंदर सिंह कपानी
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