PHY101 GDB | Optical Fiber Refractive Index Concept Explained | VU Fall 2025 | Virtual university |

In this video, I have explained the PHY101 GDB Question in a very simple and conceptual way.
Topic is related to optical fiber communication & refractive index change — and how it may or may not affect internet speed & light signals.

📌 Question Discussed:

We use the internet every day through optical fiber cables that carry light signals.
Since light changes its phase when it moves through materials with different refractive indices,
could even a tiny change in an optical fiber’s refractive index disturb your internet speed or signal? Explain.

✔ Concept explained with real-life examples
✔ Optical Fiber & Light Phase Change
✔ Refractive Index & Signal Stability
✔ Practical Internet Communication Insight
✔ VU Students Friendly Explanation

This video is helpful for:

— Virtual University Students
— PHY101 GDB Understanding
— Conceptual Physics Learners
— Fall 2025 Students

👇 Comment below if you want
➡ more physics concepts explained
➡ or next GDB / Assignment discussion

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