🔦 Light:Reflection and Refraction
📘 Explore the fascinating world of mirrors and lenses!
This chapter helps you understand how light behaves when it strikes surfaces like mirrors and lenses. Get ready to learn with diagrams, examples, and easy formulas – perfect for your board exam prep!
📚 What You Will Learn:
🔁 1. Reflection of Light
- 📏 Laws of Reflection
- 🪞 Types: Regular & Diffused Reflection
- 🧍♂️ Images formed by Plane Mirror
- 🏠 Real-life uses of Mirrors
🪞 2. Spherical Mirrors
- 🧠 Key Terms: Pole, Focus, Radius of Curvature
- 📐 Ray Diagrams (Concave & Convex)
- 🪞 Image properties (Real/Virtual, Inverted/Erect)
- 🔣 Mirror Formula: 1/f = 1/v + 1/u
- 🧮 Numericals & Sign Convention
🌊 3. Refraction of Light
- 📏 Laws of Refraction
- 🧊 Refraction through Glass Slab
- 📊 Refractive Index (n = c/v)
- 🔍 Real-life Applications (e.g., Coin in Water)
🔍 4. Lenses (Convex & Concave)
- 📘 Key Terms: Principal Axis, Focus, Optical Centre
- 📐 Ray Diagrams for Convex & Concave Lenses
- 🧮 Lens Formula: 1/f = 1/v – 1/u
- 💡 Power of a Lens (Dioptre)
🧠 5. Exam Practice
- 📖 Important Board Questions (MCQs, Diagrams)
- ⏱️ Previous Year Questions (PYQs)
- ✅ Quick Tricks & Tips
🎯 Start learning with Edusaint – Smart Science, Simple Words!
