Скачать или смотреть Science Ch - 9 | Light: Reflection and Refraction | By Yash Sir | Bhavishya SMS |

🔥 Master Light: Reflection and Refraction with Yash Sir! 🔥

Join us for a complete explanation of Class 10 Science Chapter 9 - Light: Reflection and Refraction. This comprehensive session covers all important concepts, laws, formulas, and numerical problems you need to ace your exams!

📚 What You'll Learn:
✅ Laws of Reflection
✅ Spherical Mirrors - Concave & Convex
✅ Mirror Formula and Magnification
✅ Refraction of Light
✅ Refractive Index
✅ Lenses - Convex & Concave
✅ Lens Formula and Power
✅ Sign Convention
✅ Important Numericals and Solved Examples

Time stamps:
0:00 — Introduction
0:31 — Chapter name and overview
1:02 — Why is light important? Nature of light
2:21 — Wave and particle nature of light
2:48 — Reflection of light (definition)
3:12 — Laws of reflection
3:28 — Law 1: Angle of incidence = angle of reflection
4:49 — Law 2: Incident ray, normal, reflected ray are coplanar
5:28 — Types of mirrors
5:44 — Plane Mirror
6:32 — Spherical Mirrors (Concave, Convex)
8:34 — Types of images: Real vs Virtual
9:47 — Properties & uses of mirrors
12:05 — Concave mirror uses
13:05 — Convex mirror uses
14:02 — Key mirror terms (Principal Axis, Pole, Focus, Centre of Curvature)
15:49 — Focus & focal length explained
17:57 — Rules for drawing ray diagrams
18:03 — Rule 1: Parallel ray passes through focus after reflection
18:59 — Rule 2: Ray passing through focus emerges parallel
21:05 — Rule 3: Ray passing through center reflects back
22:01 — Rule 4: Ray that hits the pole bounces at same angle
23:06 — Image formation by concave mirror: All cases explained
32:05 — Image formation by convex mirror
34:20 — Mirror formula & magnification
36:15 — Sign conventions (for formulas)
38:59 — Numerical examples and practice questions
51:44 — Final tips, practice, and motivation

🎯 Perfect for: CBSE Class 10, ICSE, State Boards

📝 Download FREE Notes:
https://drive.google.com/file/d/1K32m...

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