Physics Behind Optical Fibre Cables | Class 12 Physics | Medicaps University

Описание: In this video, we explain Total Internal Reflection (TIR) and its application in Optical Fibre in a simple, concept-based manner that is easy to understand and remember. The explanation is perfectly aligned with the NCERT syllabus and designed for CBSE Class 10 and Class 12 students, making it ideal for school exams as well as competitive exams like JEE and NEET.

We start by building the core concepts step by step understanding refraction, critical angle, and the conditions required for total internal reflection and then clearly demonstrate how these principles are applied in optical fibre communication.

What you’ll learn in this video:

What is Total Internal Reflection
Conditions required for Total Internal Reflection
Ray diagram explanation
Real-life applications of optical fibre
Board exam & competitive exam perspective
How optical fibre works using TIR

This topic is highly important for Physics exams and frequently asked in board exams, entrance tests, and viva questions.

Topics -

0:00 - Intro
0:18 - What is Total internal reflection
10:21 - Basic Principle of optical fiber
19:40 - Outro


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What is total internal reflection in physics?
What are the conditions for total internal reflection?
How does optical fibre work using total internal reflection?
Why doesn’t light escape from optical fibre?
What is the critical angle in ray optics?
Is total internal reflection important for board exams?
Is this topic asked in JEE and NEET?