Optics 4A-2 Power of Lens & Lens Maker Formula in One Shot Optics 4A-2 #nda2026 #physics #ndaexam

🔥 Welcome to Gurukul Defence Academy! In this lecture of OPTICS 4A-2, Himanshu Sir explains two of the most important concepts of geometrical optics: ✅ Power of Lens ✅ Lens Maker Formula ✅ Effect of Refractive Index ✅ Lens in Different Mediums (Air & Water) ✅ Concept Building + Numerical Approach ✅ NDA 2026 Exam Oriented Tricks This lecture is specially designed for: 🎯 NDA 2026 Aspirants 🎯 Class 11th & 12th Students 🎯 JEE Aspirants 🎯 NEET Aspirants If you want to master Optics from basic to advanced level, this series is for you. 📚 Topics Covered: • Power of Lens (P = 1/f) • Unit of Power (Dioptre) • Convex & Concave Lens Power • Lens Maker Formula • Lens in Water Concept • Numerical Problems • NDA Previous Year Concepts 💪 Concept Clear = Selection Near 👍 Like | Share | Subscribe #NDA2026 #PhysicsByHimanshuSir #Optics #PowerOfLens #LensMakerFormula #NDAPhysics #JEEPhysics #NEETPhysics #GurukulDefenceAcademy #Sure60 #PhysicsLecture #Optics4A2 #DefenceAspirants #NDAExam #PhysicsOneShot