In this video, we explain NCERT Class 10 Science Chapter 9 – Light: Reflection and Refraction (Part 7) covering: 1️⃣ Refraction by Spherical Lenses 2️⃣ Activity 9.11 (Convex Lens Experiment with Sunlight) ⚠️ Caution: Never look at the Sun directly or through a lens. This may damage your eyes. ✨ What you will learn: Concept of refraction through spherical lenses Step-by-step explanation of Activity 9.11 Why paper burns when focused sunlight passes through a convex lens Scientific reasoning with practical examples This video is part of Shaheen PCME NCERT Physics Class 10 series and is useful for CBSE Board, NCERT preparation, and competitive exams. 📚 Subject: Physics 📘 Chapter: Light – Reflection and Refraction (NCERT Class 10) 🎯 Useful for: CBSE | NCERT | Board Exams | Competitive Exams #Class10Physics #NCERTSolutions #LightReflectionRefraction #ShaheenPCME #PhysicsClass10 #SphericalLenses #ConvexLens #NCERTPhysics #CBSE #ScienceClass10