Critical angle and Total Internal Reflection complete explanation class 10 ICSE physics
Автор: Brain boosters hub
Загружено: 2026-02-20
Просмотров: 59
Описание:
In this video, we will clearly understand the important concepts of Critical Angle and Total Internal Reflection (TIR) in the simplest way. 📘✨
🔹 What is Critical Angle?
The angle of incidence in the denser medium for which the angle of refraction in the rarer medium becomes 90°.
🔹 What is Total Internal Reflection?
When light travels from a denser medium to a rarer medium and the angle of incidence is greater than the critical angle, the ray is completely reflected back into the denser medium.
In this lesson, I have explained:
✔️ Clear definitions
✔️ Ray diagrams
✔️ Conditions for TIR
✔️ Real-life examples (Optical fibre, mirage, diamonds)
✔️ Important numericals and exam questions
This topic is very important for Class 10 & 12 Physics and competitive exams.
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#CriticalAngle #TotalInternalReflection #RayOptics #PhysicsClass10 #BarinBoosters
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