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Qus: Which of the following phenomenon is used in optical fibre?

Qusऑप्टिकल फाइबर में निम्नलिखित में से किस घटना का उपयोग किया जाता है?


A. अपवर्तन
B. विवर्तन
C. बिखरने
D. कुल आंतरिक प्रतिबिंब


Solution
D. Total Internal Reflection



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