L-9 Refractive Index Explained with Easy Trick | Class 12 Physics | JEE & NEET скачать в хорошем качестве

L-9 Refractive Index Explained with Easy Trick | Class 12 Physics | JEE & NEET

In this video, we’ll learn the concept of Refractive Index (n) — one of the most important topics in Ray Optics for Class 12, JEE, and NEET. You’ll understand what refractive index means, how it relates to the speed of light in different media, and how to use it in Snell’s Law for solving numerical problems. 🧠 Important Formulas: n = c/v (where c = speed of light in vacuum, v = speed in medium) n₁ sin i = n₂ sin r (Snell’s Law) ✅ Topics Covered: Definition of refractive index Absolute and relative refractive index Snell’s law and its derivation Speed of light in different mediums Applications in lenses and prisms Shortcut tricks for quick problem solving 📚 Chapter: Ray Optics and Optical Instruments 🎯 For: Class 12 | JEE | NEET | CBSE | State Boards 🔑 SEO Tags refractive index, refractive index class 12, snells law, speed of light in medium, absolute refractive index, relative refractive index, ray optics class 12, jee physics optics, neet physics optics, physics class 12 ray optics, refraction of light 🔖 Hashtags #RefractiveIndex #SnellsLaw #RayOptics #PhysicsClass12 #NEETPhysics #JEEPhysics #BoardExam2025 #Refraction #OpticsTricks #SpeedOfLight